Category: amides-buliding-blocks

On May 31, 2022, Fent, Kenneth W.; Mayer, Alexander C.; Toennis, Christine; Sammons, Deborah; Robertson, Shirley; Chen, I-Chen; Bhandari, Deepak; Blount, Benjamin C.; Kerber, Steve; Smith, Denise L.; Horn, Gavin P. published an article.Product Details of 27115-50-0 The title of the article was Firefighters鈥?urinary concentrations of VOC metabolites after controlled-residential and training fire responses. And the article contained the following:

Firefighters are exposed to volatile organic compounds (VOCs) during structural fire responses and training fires, several of which (e.g., benzene, acrolein, styrene) are known or probable carcinogens. Exposure studies have found that firefighters can absorb chems. like benzene even when self-contained breathing apparatus (SCBA) are worn, suggesting that dermal absorption contributes to potentially harmful exposures. However, few studies have characterized VOC metabolites in urine from firefighters. We quantified VOC metabolites in firefighters urine following live firefighting activity across two field studies. In two sep. controlled field studies, spot urine was collected before and 3 h after firefighters and firefighter students responded to simulated residential and training fires. Urine was also collected from instructors from the training fire study before the first and 3 h after the last training scenario for each day (instructors led three training scenarios per day). Samples were analyzed for metabolites of VOCs to which firefighters may be exposed. In the residential fire study, urinary metabolites of xylenes (2MHA), toluene (BzMA), and styrene (MADA) increased significantly (at 0.05 level) from pre- to post-fire. In the training fire study, MADA concentrations increased significantly from pre- to post-fire for both firefighter students and instructors. Urinary concentrations of benzene metabolites (MUCA and PhMA) increased significantly from pre- to post-fire for instructors, while metabolites of xylenes (3MHA+4MHA) and acrolein (3HPMA) increased significantly for firefighter students. The two highest MUCA concentrations measured post-shift from instructors exceeded the BEI of 500 渭g/g creatinine. Some of the metabolites that were significantly elevated post-fire are known or probable human carcinogens (benzene, styrene, acrolein); thus, exposure to these compounds should be eliminated or reduced as much as possible through the hierarchy of controls. Given stringent use of SCBA, it appears that dermal exposure contributes in part to the levels measured here. The experimental process involved the reaction of 2-(4-Methylbenzamido)acetic acid(cas: 27115-50-0).Product Details of 27115-50-0

The Article related to volatile organic compound firefighter urinary concentration fire response, acrolein, benzene, biomarker, fire, styrene, urine, Placeholder for records without volume info and other aspects.Product Details of 27115-50-0

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

On September 30, 2022, Balic, Ivan; Olmedo, Patricio; Zepeda, Baltasar; Rojas, Barbara; Ejsmentewicz, Troy; Barros, Miriam; Aguayo, Daniel; Moreno, Adrian A.; Pedreschi, Romina; Meneses, Claudio; Campos-Vargas, Reinaldo published an article.Computed Properties of 685-91-6 The title of the article was Metabolomic and biochemical analysis of mesocarp tissues from table grape berries with contrasting firmness reveals cell wall modifications associated to harvest and cold storage. And the article contained the following:

Tissue texture influences the grape berry consumers acceptance. We studied the biol. differences between the inner and outer mesocarp tissues in hard and soft berries of table grapes cv NN107. Texture anal. revealed lower levels of firmness in the inner mesocarp as compared with the outer tissue. HPAEC-PAD anal. showed an increased abundance of cell wall monosaccharides in the inner mesocarp of harder berries at harvest. Immunohistochem. anal. displayed differences in homogalacturonan methylesterification and cell wall calcium between soft and hard berries. This last finding correlated with a differential abundance of calcium measured in the alc.-insoluble residues (AIR) of the inner tissue of the hard berries. Anal. of abundance of polar metabolites suggested changes in cell wall carbon supply precursors, providing new clues in the identification of the biochem. factors that define the texture of the mesocarp of grape berries. The experimental process involved the reaction of N,N-Diethylacetamide(cas: 685-91-6).Computed Properties of 685-91-6

The Article related to table grape mesocarp cell wall metabolomic harvest cold storage, calcium, pectin, polar metabolites, texture, vitis vinifera, Placeholder for records without volume info and other aspects.Computed Properties of 685-91-6

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Dykhanov, N. N.; Ryzhkova, T. S.; Khaletskii, A. M. published an article in 1967, the title of the article was Ammonolysis of isomeric chlorobenzensulfonamides.Application of 97-09-6 And the article contains the following content:

Heating o-ClC6H4SO2NH2 (I) with 15 moles NH3 (as 30% solution in water) to 200° in the absence of catalysts failed to give any reaction. However, in the presence of Cu2O, ammonolysis took place at 145-50° to give 5-6% o-H2NC6H4SO2NH2 (II) and a polymeric mass (III). Hydrolysis of III with 40% H2SO4 gave o-H2NC6H4SO3H and II. Presence of an alkyl substituent on the amino group of I prevents the formation of a polymer. Thus, ammonolysis of o-ClC6H4SO2NHMe in the presence of Cu+ at 155-60° gave ∼80% o-H2NC6H4SO2NHMe. Also ammonolysis of m-ClC6H4SO2NH2 gave ∼80% m-H2NC6H4SO2NH2 and no polymer. Formation of II was explained by postulating the existence of an intermediate Cu+ complex of the average composition [ClC6H4SO2NH2.CuCl.2H2O],which at 200° nearly instantaneously decompose to III. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Application of 97-09-6

3-Nitro-4-chlorobenzenesulfonamide(cas:97-09-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Application of 97-09-6

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Ionescu, Maria; Panea, Ioan published an article in 1967, the title of the article was Infrared spectra of some sulfamides.Synthetic Route of 97-09-6 And the article contains the following content:

A series of sulfamides were pelletized with KBr (1:300 mg./mg.), and the ir spectra were determined The data were tabulated for the bands corresponding to νs–…C, νs–…N, νs–…O, and The first 3 bands at 1090, 1050, and 1030 cm.-1, resp., are present in the spectra of the arylsulfamides in the 1100-1000-cm.-1 range, in addition to the bands corresponding to the νβ-CH of the substituted benzene nucleus. In many cases, these bands coupled with each other or with addnl. bands. The band at 913 cm.-1 in I was used for quant. anal. The ir spectrum of the equimol. mixture of I and its isomer showed that it was additive, each vibration (even of the same bond but in different connection) manifesting its presence by a corresponding maximum Determinations, by using various amounts of I and II and measuring the extinction by the base line method, verified the rectilinear correlation between extinction and concentration of I, when the latter is >90%, but if it is <60% the error is >>2.8%. 16 references. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Synthetic Route of 97-09-6

3-Nitro-4-chlorobenzenesulfonamide(cas:97-09-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Synthetic Route of 97-09-6

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Kavalek, Jaromir; Socha, Jaromir published an article in 1968, the title of the article was Quinoxaline series. V. Preparation of 3-hydroxy-2-methyl-6-chloroquinoxaline and 3-hydroxy-2-methyl-6-sulfamoylquinoxaline.Reference of 3-Nitro-4-chlorobenzenesulfonamide And the article contains the following content:

The title compounds I are potential fungicides and therapeutic agents. Thus, 17.2 g. 2-nitro-4-chloroaniline and 15.3 g. DL-MeCHBrCO2H was heated at 120° 40 hrs., the product extracted with hot aqueous NH4OH, and the extract made acid with HCl to give 4.86 g. N-(2-nitro-4-chlorophenyl)-DL-alanine, m. 162-3° (MeOH), which was hydrogenated in MeOH solution over Raney Ni, the product oxidized in 4% NaOH solution with 30% H2O2 on a steam bath and the material purified on Al2O3 to yield 11% I (R = Cl), m. 274-5°. A suspension of 7.1 g. 3-nitro-4-chlorobenzenesulfonamide, 11.2 g. NaHCO3, and 8.1 g. DL-alanine in 20 ml. MeOH and 15 ml. H2O gave on heating 48 hrs. at 90-100° 7.75 g. N-(2-nitro-4-sulfamoylphenyl)-DL-alanine, m. 233.5-6.0°, which was portionwise added to a boiling mixture of FeSO4.7H2O and 5% aqueous NH4OH. After 15 min., the mixture was filtered, the filtrate made acid, and the separated crude amide of 3-hydroxy-2-methyl-1,2-dihydro-6-quinoxalinesulfonic acid, m. 235-9°, dropwise treated with 30% aqueous H2O2 and kept 1 hr. on a steam bath to yield 69% I (R = SO2NH2), m. 325.5-7.0°. By an alternative route, I (R = SO2NH2) was obtained in 92% yield by treating amide of 4-amino-3-nitrobenzenesulfonic acid in aqueous NH4OH at 80° with a solution of FeSO4 and allowing to react the resulting 1,2-diamino-4-benzenesulfonamide, m. 173-5°, at 65° with an aqueous solution of pyruvic acid. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Reference of 3-Nitro-4-chlorobenzenesulfonamide

3-Nitro-4-chlorobenzenesulfonamide(cas:97-09-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Reference of 3-Nitro-4-chlorobenzenesulfonamide

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Chatterjee, Asima; Chaudhuri, Narayan Aditya published an article in 1957, the title of the article was New synthesis of β-hydroxy-β-(p-methoxyphenyl)ethylamine and aegelin, the alkaloid of Aegle marmelos correa.Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide And the article contains the following content:

KCN and HCl (sp. gr. 1.85) added alternately in small quantities to anisaldehyde cooled in a freezing mixture gave anisaldehyde cyanohydrin (I), m. 67°. I was smoothly reduced by LiAlH4 (65% yield) to DL-β-hydroxy-β-(p-methoxyphenyl)ethylamine (II). Dry HCl gas added to II dissolved in Et2O gave II.HCl, m. 172-3°. An ethereal solution of II added to an ethereal solution of trans-cinnamoyl chloride (III) gave DL-trans-N-[β-hydroxy-β-(p-methoxyphenyl)] ethyl cinnamide (IV), m. 178-9°, identical with aegelin; this was confirmed by infrared spectra and Rf values. The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas:456-12-2) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Recommanded Product: N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Conroy, Harold; Bernasconi, Raymond; Brook, Peter R.; Ikan, Raphael; Kurtz, Roberta; Robinson, Keith W. published an article in 1960, the title of the article was Structure of echitamine.Related Products of 456-12-2 And the article contains the following content:

Accumulated data favor formulation of echitamine (I) in compatability with the theory of alkaloid biogenesis and in close resemblance to intermediates of the strychnine-vomicine group. Echitamine chloride (II), C22H29ClN2O4, ν 1740, shows no infrared N+-H peak and no :C:N+: absorption at 1680 cm.-1 The aqueous solution is neutral, apparent pKa 11, and treatment with aqueous NaOH gives I, C22H28N2O4, readily crystallized as the C6H6 solvate, m. 139-40° (transition at 98-101°). The 60 Mc. high resolution nuclear magnetic resonance (n.m.r.) spectrum gives intense singlets at τ 6.30, 7.76 for O-Me and N-Me, indicating that I is not a quaternary ammonium hydroxide; a doublet at τ 8.39 for allylic C-Me; a 1,3,3,1 sym. quartet at τ 4.56 for the olefinic proton; and a one-proton singlet near τ 5.1 ascribed to a single OH group. Formation of I α-methiodide, m. 226-9° (decomposition) (absolute alc.), with 2 N-Me groups indicates normal behavior as a tertiary base. The reconversion of I to II is sufficiently slow at 25° so that titration of I gives a pKa 7.8 in 60% aqueous alc. and this hysteresis is well accommodated by the equilibrium I ⇌ II. II treated with Me3COK in absolute Me3COH yields alloechitamine (III), C21H26NO3, m. 191° (MeOH), ν 1736, 1689 cm.-1, n.m.r, spectra showing presence of O-Me, N-Me, and MeCH: groups; MeI salt, showing loss of 1689 cm.-1 peak due to transannular interaction. I in alc. hydrogenated with Pt gives a high yield of echitinolide (IV), C21H26N2O3, m. 140-4° (Et2O), m. 154-7° (C6H6), pKa, 5.4 (60% alc.), n.m.r. τ 7.53 (singlet, N-Me), 7.76 (singlet, C-Me), 8.48 (doublet, C-Me), ν 1742 cm.-1; O-monoacetate, m. 210-14°, 1754 cm.-1 IV heated with HCl gives an isomer, isoechitinolide (V), m. 149-54° (Et2O), ν 1754 cm.-1 I and II show almost identical ultraviolet absorption [λ 235, 295 mμ (log ε 3.93, 3.55)], even in strongly alk. solution IV and V absorb at longer wave lengths [λ 248, 309 mμ (log ε 3.91, 3.55)] but acidification causes downward displacement. All compounds with low wave length absorption have Na equatorial with respect to the C carbocyclic six-membered ring, whereas absorption above 240 mμ (and 300 mμ) can be consistently related with structures in which Na has axial conformation. The Hofmann degradation of IV MeI salt gives the methine, C22H30N2O4, reduced by Zn-HCl to the lactone, deoxyneodihydroechitamine methine, λ247, 307 mμ (log ε 3.97, 3.59), unchanged in acidic solution The Zn dust and Se degradations leading to echitamyrine and dimethylpyrrolo-2′,3′;3,4-quinoline might proceed through the intermediate (VI) which could arise from the iminium cation of IV by 1,2 migration of the indoline α-C. It is suggested that the specific biogenetic derivation of I involves the precursor (VII) in Mannich cyclization. (CA 53, 22033i). A close relation to the quaternary alkaloid C-fluorocurarine is apparent, and the noncyclized system retaining the CO2H residue is present in corynoxeine and rhyncophylline. The experimental process involved the reaction of N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas: 456-12-2).Related Products of 456-12-2

N-(2-Hydroxy-2-(4-methoxyphenyl)ethyl)cinnamamide(cas:456-12-2) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Related Products of 456-12-2

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Heppolette, R. L.; Miller, Joseph published an article in 1956, the title of the article was The SN mechanism in aromatic compounds. XXI.Computed Properties of 97-09-6 And the article contains the following content:

cf. C.A. 49, 14666e; 50, 14594h. The activating power of a series of p-SO2R groups in aromatic nucleophilic substitution is investigated and found to be in the order R = NH-, O- < NC5H10, NMe2, NMePh < Me < Ph. This order is derived by determining the rates and Arrhenius parameters of the reactions of 4,3-Cl(O2N)C6H3SO2R with MeO- in MeOH, either by direct measurement, or by computation from another reaction, assuming relative substituent effects to be constant Reactions other than with MeO- in MeOH were for R = O-, with OH- in H2O, for R = Ph, with MeO- in 1:1 (volume/volume) C6H6-MeOH. Rates and Arrhenius parameters are also reported for the reaction of 4,3-Cl(O2N)C6H3X with MeO- in MeOH for X = NO2, COMe, N2+ (estimated from the reaction of 4,3-F(O2N)C6H3N2+ with MeO-), and NMe3+ (estimated from the reaction of 4,3-Br(O2N)C6H3NMe3+ with OMe-), and activation is in the order X = N2+ > NO2 > SO2Me > NMe3+ > COMe > H. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Computed Properties of 97-09-6

3-Nitro-4-chlorobenzenesulfonamide(cas:97-09-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Computed Properties of 97-09-6

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Yamada, Kimiho; Shinomiya, Chiro published an article in 1959, the title of the article was Dyeing of fibers difficult to dye. VIII. Condensation-dyeing by active halo compound with free amines.Electric Literature of 97-09-6 And the article contains the following content:

By using 14 halo compounds and 15 amino compounds, the reactivity and the dyeing property for several kinds of fibers were studied. Condensation-dyeing of this system have small hue variations. Strong basic amines having conjugate systems throughout the mol. are better than the others. Halo compounds containing suitable soluble radicals are good for nylon, Vinylon, and wool, and also the one having the active halo radical at the side chain showed excellent results. Each kind of fiber is deeply dyed, but, in general, cotton is more difficult to dye than the others. Of halo compounds, the hydrolytic constant and the reactivity with benzidine in H2O are; 2-chloro-5-nitrobenzenesulfonic acid > picryl chloride > 2-chloro-3,5-dinitrobenzoic acid > 2,4-dinitrochlorobenzene > 2-chloro-4-nitrobenzenesulfonic acid > 2-chloro-4-nitrobenzoic acid > 4-chloro-3-nitrobenzenesulfonamide. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Electric Literature of 97-09-6

3-Nitro-4-chlorobenzenesulfonamide(cas:97-09-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Electric Literature of 97-09-6

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Merian, Ernest published an article in 1960, the title of the article was Differentiation between alkyl aryl sulfone groups and aromatic sulfonamide groups by use of infrared spectrography.COA of Formula: C6H5ClN2O4S And the article contains the following content:

Application of infrared absorption bands to differentiate between alkyl aryl sulfone groups and primary, secondary, and tertiary aromatic sulfonamide groups was discussed. Infrared absorption spectra of the following compounds were charted: methanesulfonyl chloride; 4-methylsulfonyl-1-chloro-2-nitrobenzene; 4-methylsulfonyl-1-amino-2-chlorobenzene; a monoazo dye formed of 6-methylsulfonyl-2-diazobenzothiazole and N-ethyl-N-cyanoethyl-m-toluidine; 1-chloro-2 nitrobenzene-4-sulfonamide; 1-chloro-2-nitrobenzene-4-sulfonmethylamide; 1-chloro-2-nitrobenzene-4-sulfonethylamide; 1-amino-2-chlorobenzene-4-sulfonmethylamide; dimethylaminosulfonyl chloride; 1-chloro-2-nitrobenzene-4-sulfondiethylamide; 1-amino-2-chlorobenzene-4-sulfondimethylamide; and 1-aminobenzene-4-sulfondimethylamide. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).COA of Formula: C6H5ClN2O4S

3-Nitro-4-chlorobenzenesulfonamide(cas:97-09-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. COA of Formula: C6H5ClN2O4S

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics