Tag: M.W=150-200

An article Iridium complexes with a new type ofN boolean AND N ‘-donor anionic ligand catalyze theN-benzylation of amines via borrowing hydrogen WOS:000576732700001 published article about CRYSTAL-STRUCTURE; ALKYLATION; ALCOHOLS; AMINATION; DEHYDROGENATION; SECONDARY; KETONES; IMINES; 5-(2-PYRIDYLMETHYLENE)HYDANTOIN; HYDROAMINATION in [Ruiz-Castaneda, Margarita; Rodriguez, Ana M.; Manzano, Blanca R.; Jalon, Felix A.] Univ Castilla La Mancha, Fac Quim, Dept Quim Inorgan Organ & Bioquim, IRICA, Avda Camilo J Cela 10, Ciudad Real 13071, Spain; [Aboo, Ahmed H.; Xiao, Jianliang] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England; [Espino, Gustavo] Univ Burgos, Fac Ciencias, Dept Quim, Plaza Misael Banuelos S-N, Burgos 09001, Spain in 2020.0, Cited 70.0. Category: amides-buliding-blocks. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9

The development of efficient and eco-friendly methods for the synthesis of elaborate amines is highly desired as they are valuable chemicals. The catalytic alkylation of amines using alcohols as alkylating agents, through the so-called borrowing hydrogen process, satisfies several of the principles of green chemistry. In this paper, four neutral half-sandwich complexes of Ru(II), Rh(III), and Ir(III) have been synthesized and tested as catalysts in theN-benzylation of amines with benzyl alcohol. The new derivatives contain aN(boolean AND)N ‘ anionic ligand derived from 5-(pyridin-2-ylmethylene)hydantoin (Hpyhy) that has never been tested in metal complexes with catalytic applications. In particular, the Ir derivatives, [(Cp*)IrX(pyhy)] (X = Cl or H), exhibit high activity along with good selectivity in the process. Indeed, the scope of the optimized protocol has been proved in the benzylation of several primary and secondary amines. The selectivity towards monoalkylated or dialkylated amines has been tuned by adjusting the amine:alcohol ratio and the reaction time. Experimental results support a mechanism consisting of three consecutive steps, two of which are Ir catalyzed, and a favorable condensation step without the assistance of the catalyst. Moreover, an unproductive competitive pathway can operate when the reaction is performed in open-air vessels, due to the irreversible release of H-2. This route is hampered when the reaction is carried out in close vessels, likely because the release of H(2)is reversed through metal-based heterolytic cleavage. From our viewpoint, these results show the potential of the new catalysts in a very attractive and promising methodology for the synthesis of amines.

About Diphenylmethanamine, If you have any questions, you can contact Ruiz-Castaneda, M; Rodriguez, AM; Aboo, AH; Manzano, BR; Espino, G; Xiao, JL; Jalon, FA or concate me.. Product Details of 91-00-9

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Recommanded Product: 91-00-9. Recently I am researching about EFFICIENT RECYCLABLE CATALYST; DBN TETRAPHENYLBORATE SALTS; DIRECT AMIDATION; CARBOXYLIC-ACIDS; HIGHLY EFFICIENT; SILICA-GEL; ALCOHOLS; AMINES; PHENOLS; SOLVENT, Saw an article supported by the . Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Ghosh, S; Purkait, A; Jana, CK. The CAS is 91-00-9. Through research, I have a further understanding and discovery of Diphenylmethanamine

An operationally simple and general method for acetylation and acylation of a wide variety of substrates (amines, alcohols, phenols, thiols, and hydrazones) has been reported. Meldrum’s acid and its derivatives have been used as an air-stable, non-volatile, cost-effective, and easy to handle acetylating/acylating agent. Easily separable byproducts (CO2 and acetone) allowed the isolation of analytically pure acetylated products without the requirement of work-up and any chromatography.

About Diphenylmethanamine, If you have any questions, you can contact Ghosh, S; Purkait, A; Jana, CK or concate me.. Safety of Diphenylmethanamine

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Amide – Wikipedia,
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HPLC of Formula: C13H13N. Fang, HQ; Oestreich, M in [Fang, Huaquan; Oestreich, Martin] Tech Univ Berlin, Inst Chem, Str 17 Juni 115, D-10623 Berlin, Germany published Reductive Deamination with Hydrosilanes Catalyzed by B(C6F5)(3) in 2020.0, Cited 52.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

The strong boron Lewis acid tris(pentafluorophenyl)borane B(C6F5)(3) is known to catalyze the dehydrogenative coupling of certain amines and hydrosilanes at elevated temperatures. At higher temperature, the dehydrogenation pathway competes with cleavage of the C-N bond and defunctionalization is obtained. This can be turned into a useful methodology for the transition-metal-free reductive deamination of a broad range of amines as well as heterocumulenes such as an isocyanate and an isothiocyanate.

HPLC of Formula: C13H13N. About Diphenylmethanamine, If you have any questions, you can contact Fang, HQ; Oestreich, M or concate me.

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Amide – Wikipedia,
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Authors Raimbault, A; Ma, CMA; Ferri, M; Baurer, S; Bonnet, P; Bourg, S; Lammerhofer, M; West, C in ELSEVIER published article about CHIRAL RECOGNITION MECHANISM; BETA-AMINO ACIDS; LIQUID-CHROMATOGRAPHY; CAPILLARY ELECTROCHROMATOGRAPHY; PERFORMANCE; SEPARATIONS; INSIGHTS; POLYSACCHARIDE; ENANTIOMER; QUININE in [Raimbault, Adrien; Cam Mai Anh Ma; Bonnet, Pascal; Bourg, Stephane; West, Caroline] Univ Orleans, Inst Organ & Analyt Chem, CNRS UMR 7311, Rue Chartres BP 6759, F-45067 Orleans, France; [Ferri, Martina; Baeurer, Stefanie; Laemmerhofer, Michael] Univ Tubingen, Inst Pharmaceut Sci, Pharmaceut Bio Anal, Morgenstelle 8, D-72076 Tubingen, Germany; [Ferri, Martina] Univ Perugia, Dept Pharmaceut Sci, Via Liceo 1, I-06123 Perugia, Italy in 2020, Cited 43. COA of Formula: C13H13N. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9

Chiralpak ZWIX(+) and ZWIX(-), are brush-type bonded-silica chiral stationary phases (CSPs), based on complex diastereomeric Cinchona alkaloids derivatives bearing both a positive and a negative charge. In the present study, we aimed to improve the understanding of retention and enantioseparation mechanisms of these CSPs employed in supercritical fluid chromatography (SFC). For this purpose, 9 other stationary phases were used as comparison systems: two of them are commercially available and bear only a positive charge (Chiralpak QN-AX and QD-AX) and the 7 others were designed purposely to be structurally similar to the parent ZWIX phases, but miss some portion of the complex ligand. First, cluster analysis was employed to identify similar and dissimilar behavior among the 11 stationary phases, where ionic interactions appeared to dominate the observed differences. Secondly, the stationary phases were characterized with linear solvation energy relationships (LSER) based on the SFC analysis of 161 achiral analytes and a modified version of the solvation parameter model to include ionic interactions. This served to compare the interaction capabilities for the 11 stationary phases and showed in particular the contribution of attractive and repulsive ionic interactions. Then the ZWIX phases were characterized for their enantioseparation capabilities with a set of 58 racemic probes. Discriminant analysis was applied to explore the molecular structural features that are useful to successful enantioseparation on the ZWIX phases. In particular, it appeared that the presence of positive charges in the analyte is causing increased retention but is not necessarily a favorable feature to enantiorecognition. On the opposite, the presence of negative charges in the analyte favors early elution and enantiorecognition. Finally, a smaller set of 30 pairs of enantiomers, selected by their structural diversity and different enantioseparation values on the ZWIX phases, were analyzed on all chiral phases to observe the contribution of each structural fragment of the chiral ligand on enantioselectivity. Molecular modelling of the ligands also helped in understanding the three-dimensional arrangement of each ligand, notably the intra-molecular hydrogen bonding or the possible contribution of ionic interactions. In the end, each structural element in the ZWIX phases appeared to be a significant contributor to successful enantioresolution, whether they contribute as direct interaction groups (ion-exchange functions) or as steric constraints to orientate the interacting groups towards the analytes. (C) 2019 Elsevier B.V. All rights reserved.

COA of Formula: C13H13N. About Diphenylmethanamine, If you have any questions, you can contact Raimbault, A; Ma, CMA; Ferri, M; Baurer, S; Bonnet, P; Bourg, S; Lammerhofer, M; West, C or concate me.

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Amide – Wikipedia,
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An article Total synthesis of Met(10)-teixobactin WOS:000475998200009 published article about STAPHYLOCOCCUS-AUREUS MRSA; POTENT TEIXOBACTIN ANALOGS; ANTIBACTERIAL ACTIVITY; IN-VITRO; ENDURACIDIDINE; SUBSTITUTION; RESIDUES; DESIGN in [Gunjal, Vidya B.; Reddy, D. Srinivasa] CSIR Natl Chem Lab, Organ Chem Div, Dr Homi Bhabha Rd, Pune 411008, Maharashtra, India; [Gunjal, Vidya B.; Reddy, D. Srinivasa] Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India in 2019.0, Cited 41.0. Category: amides-buliding-blocks. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9

The total synthesis of cyclic depsipeptide Met(10)-teixobactin in solution-phase is described. Teixobactin is a structurally and mechanistically novel antimicrobial peptidic natural product with very impressive activities against Gram-positive pathogens. It happens to possess an L-allo-enduracididine (End) residue as part of macrocyclic ring which is not readily accessible. In this report, we have used serine ligation strategy as the key step to prepare an analogue of teixobactin where End being replaced with a readily available amino acid methionine. (C) 2019 Elsevier Ltd. All rights reserved.

Category: amides-buliding-blocks. About Diphenylmethanamine, If you have any questions, you can contact Gunjal, VB; Reddy, DS or concate me.

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

Cettolin, M; Bai, XS; Lubken, D; Gatti, M; Facchini, SV; Piarulli, U; Pignataro, L; Gennari, C in [Cettolin, Mattia; Bai, Xishan; Lubken, Dennis; Gatti, Marco; Pignataro, Luca; Gennari, Cesare] Univ Milan, Dipartimento Chim, Via C Golgi 19, I-20133 Milan, Italy; [Facchini, Sofia Vailati; Piarulli, Umberto] Univ Insubria, Dipartimento Sci & Alta Tecnol, Via Valleggio 11, I-22100 Como, Italy published Improving C=N Bond Reductions with (Cyclopentadienone)iron Complexes: Scope and Limitations in 2019.0, Cited 71.0. HPLC of Formula: C13H13N. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

Herein, we broaden the application scope of (cyclopentadienone)iron complexes 1 in C=N bond reduction. The catalytic scope of pre-catalyst 1b, which is more active than the Knolker complex (1a) and other members of its family, has been expanded to the catalytic transfer hydrogenation (CTH) of a wider range of aldimines and ketimines, either pre-isolated or generated in situ. The kinetics of 1b-promoted CTH of ketimine S1 were assessed, showing a pseudo-first order profile, with TOF = 6.07 h(-1) at 50 % conversion. Moreover, the chiral complex 1c and its analog 1d were employed in the enantioselective reduction of ketimines and reductive amination of ketones, giving fair to good yields and moderate enantioselectivity.

HPLC of Formula: C13H13N. About Diphenylmethanamine, If you have any questions, you can contact Cettolin, M; Bai, XS; Lubken, D; Gatti, M; Facchini, SV; Piarulli, U; Pignataro, L; Gennari, C or concate me.

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Amide – Wikipedia,
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SDS of cas: 91-00-9. In 2020.0 J AM CHEM SOC published article about N-H BONDS; BRONSTED ACID; METAL CATALYSIS; AMINATION; INSERTION; DERIVATIVES; COMPLEXES; CARBENE; MODE in [Luo, Yuzheng; Li, Pingfan] Beijing Univ Chem Technol, Coll Chem, Dept Organ Chem, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China; [Guo, Wengang; Sung, Herman H-Y; Williams, Ian D.; Sun, Jianwei] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China in 2020.0, Cited 50.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

Herein we disclose a new catalytic asymmetric approach for the synthesis of chiral alpha-amino ketones, which is particularly useful for the less accessible acyclic alpha-tertiary cases. By a protonation-amination sequence, our approach represents a rare asymmetric H-heteroatom bond insertion by alpha-carbonyl sulfonium ylides, an attractive surrogate of diazocarbonyls. The mild intermolecular C-N bond formation was catalyzed by chiral phosphoric acids with excellent efficiency and enantioselectivity. The products are precursors to other important chiral amine derivatives, including drug molecules and chiral ligands. The enantioselectivity was controlled by dynamic kinetic resolution in the amination step, rather than the initial protonation. This process opens up a new platform for the development of other related insertion reactions.

SDS of cas: 91-00-9. About Diphenylmethanamine, If you have any questions, you can contact Guo, WG; Luo, YZ; Sung, HHY; Williams, ID; Li, PF; Sun, JW or concate me.

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

An article Uniform Cu/chitosan beads as a green and reusable catalyst for facile synthesis of imines via oxidative coupling reaction WOS:000540547000064 published article about HETEROGENEOUS CATALYST; METAL-FREE; FUNCTIONALIZED-CHITOSAN; EFFICIENT CATALYST; AEROBIC OXIDATION; COPPER CATALYST; PRIMARY AMINES; BENZYLAMINES; COMPLEXES; AMBIENT in [Chutimasakul, Threeraphat; Nakhonpanom, Pakamon Na; Tirdtrakool, Warinda; Intanin, Apichai; Bunchuay, Thanthapatra; Chantiwas, Rattikan; Tantirungrotechai, Jonggol] Mahidol Univ, Fac Sci, Ctr Excellence Innovat Chem, Dept Chem, Bangkok 10400, Thailand in 2020.0, Cited 52.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9. HPLC of Formula: C13H13N

A nonprecious metal and biopolymer-based catalyst, Cu/chitosan beads, has been successfully prepared by using a software-controlled flow system. Uniform, spherical Cu/chitosan beads can be obtained with diameters in millimeter-scale and narrow size distribution (0.78 +/- 0.04 mm). The size and morphology of the Cu/chitosan beads are reproducible due to high precision of the flow rate. In addition, the application of the Cu/chitosan beads as a green and reusable catalyst has been demonstrated using a convenient and efficient protocol for the direct synthesis of imines via the oxidative self- and cross-coupling of amines (24 examples) with moderate to excellent yields. Importantly, the beads are stable and could be reused more than ten times without loss of the catalytic performance. Furthermore, because of the bead morphology, the Cu/chitosan catalyst has greatly simplified recycling and workup procedures.

About Diphenylmethanamine, If you have any questions, you can contact Chutimasakul, T; Nakhonpanom, PN; Tirdtrakool, W; Intanin, A; Bunchuay, T; Chantiwas, R; Tantirungrotechai, J or concate me.. HPLC of Formula: C13H13N

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

HPLC of Formula: C13H13N. In 2020.0 CHEM SCI published article about ENANTIOSELECTIVE SYNTHESIS; HIGHLY EFFICIENT; LACTAM SYNTHESIS; AMIDES; ACIDS; POLYMERIZATION; HYDROGENATION; HETEROCYCLES; SUBSTITUTION; CAPURAMYCIN in [Xie, Jianing; Li, Xuetong; Kleij, Arjan W.] Barcelona Inst Sci & Technol, Inst Chem Res Catalonia ICIQ, Av Paisos Catalans 16, Tarragona 43007, Spain; [Kleij, Arjan W.] Catalan Inst Res & Adv Studies ICREA, Pg Lluis Co 23, Barcelona 08010, Spain in 2020.0, Cited 68.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

A stereoselective amination/cyclization cascade process has been developed that allows for the preparation of a series of unsaturated and substituted caprolactam derivatives in good yields. This conceptually novel protocol takes advantage of the easy access and modular character of vinyl gamma-lactones that can be prepared from simple precursors. Activation of the lactone substrate in the presence of a suitable Pd precursor and newly developed phosphoramidite ligand offers a stereocontrolled ring-opening/allylic amination manifold under ambient conditions. The intermediate (E)-configured epsilon-amino acid can be cyclized using a suitable dehydrating agent in an efficient one-pot, two-step sequence. This overall highly chemo-, stereo- and regio-selective transformation streamlines the production of a wide variety of modifiable and valuable caprolactam building blocks in an operationally attractive way.

HPLC of Formula: C13H13N. About Diphenylmethanamine, If you have any questions, you can contact Xie, JN; Li, XT; Kleij, AW or concate me.

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

I found the field of Chemistry very interesting. Saw the article Pro-Phe Derivatives as Organocatalysts in Asymmetric Aldol Reaction published in 2021. COA of Formula: C13H13N, Reprint Addresses Yolacan, C (corresponding author), Yildiz Tech Univ, Dept Chem, Davutpasa Campus, TR-34010 Istanbul, Turkey.. The CAS is 91-00-9. Through research, I have a further understanding and discovery of Diphenylmethanamine

The aldol reaction which is the most important one among the C-C bond forming reactions, is widely used by synthetic organic chemists to obtain beta-hydroxycarbonyl compounds which are important starting components for biologically active compounds in optically pure form. In this research, five Pro-Phe derivatives were synthesized by simple amidation reactions and characterized by their spectral data. Their catalytic activities in asymmetric aldol reaction were investigated. The catalytic activity studies were performed with aliphatic ketones and various aromatic aldehydes. Especially, (S)methyl 3-mercapto-2-(S)-3-phenyl-2-((S)-pyrrolidine-2-carboxamido)propanamido)propanoate showed good catalytic activities in water at 0 degrees C in the presence of p-nitrobenzoic acid cocatalyst. The enantioselectivities were up to 90.4%, the diastereomeric ratios were up to 97/3 and yields were 99%. The results showed that these organocatalysts were promising organocatalysts for aldol reaction. Besides, this catalyst showed its best catalytic activities in water which is also an important contribution to green chemistry requirements.

About Diphenylmethanamine, If you have any questions, you can contact Karaoglu, M; Aydogan, F; Yolacan, C or concate me.. COA of Formula: C13H13N

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