Tag: M.W=150-200

Quality Control of Diphenylmethanamine. Authors Chen, DH; Sun, WT; Zhu, CJ; Lu, GS; Wu, DP; Wang, AE; Huang, PQ in WILEY-V C H VERLAG GMBH published article about in [Chen, Dong-Huang; Sun, Wei-Ting; Zhu, Cheng-Jie; Lu, Guang-Sheng; Wu, Dong-Ping; Wang, Ai-E; Huang, Pei-Qiang] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China; [Chen, Dong-Huang; Sun, Wei-Ting; Zhu, Cheng-Jie; Lu, Guang-Sheng; Wu, Dong-Ping; Wang, Ai-E; Huang, Pei-Qiang] Xiamen Univ, Fujian Prov Key Lab Chem Biol, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China; [Wang, Ai-E; Huang, Pei-Qiang] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China in 2021.0, Cited 89.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9

The combination of transition-metal catalysis and organocatalysis increasingly offers chemists opportunities to realize diverse unprecedented chemical transformations. By combining iridium with chiral thiourea catalysis, direct enantioselective reductive cyanation and phosphonylation of secondary amides have been accomplished for the first time for the synthesis of enantioenriched chiral alpha-aminonitriles and alpha-aminophosphonates. The protocol is highly efficient and enantioselective, providing a novel route to the synthesis of optically active alpha-functionalized amines from the simple, readily available feedstocks. In addition, the reactions are scalable and the thiourea catalyst can be recycled and reused.

About Diphenylmethanamine, If you have any questions, you can contact Chen, DH; Sun, WT; Zhu, CJ; Lu, GS; Wu, DP; Wang, AE; Huang, PQ or concate me.. Quality Control of Diphenylmethanamine

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

Quality Control of Diphenylmethanamine. Dommaschk, M; Echavarren, J; Leigh, DA; Marcos, V; Singleton, TA in [Dommaschk, Marcel; Echavarren, Javier; Leigh, David A.; Marcos, Vanesa; Singleton, Thomas A.] Univ Manchester, Sch Chem, Oxford Rd, Manchester M13 9PL, Lancs, England published Dynamic Control of Chiral Space Through Local Symmetry Breaking in a Rotaxane Organocatalyst in 2019.0, Cited 87.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

We report on a switchable rotaxane molecular shuttle that features a pseudo-meso 2,5-disubstituted pyrrolidine catalytic unit on the axle whose local symmetry is broken according to the position of a threaded benzylic amide macrocycle. The macrocycle can be selectively switched (with light in one direction; with catalytic acid in the other) with high fidelity between binding sites located to either side of the pyrrolidine unit. The position of the macrocycle dictates the facial bias of the rotaxane-catalyzed conjugate addition of aldehydes to vinyl sulfones. The pseudo-meso non-interlocked thread does not afford significant selectivity as a catalyst (2-14 % ee), whereas the rotaxane affords selectivities of up to 40 % ee with switching of the position of the macrocycle changing the handedness of the product formed (up to 60 % Delta ee).

Quality Control of Diphenylmethanamine. About Diphenylmethanamine, If you have any questions, you can contact Dommaschk, M; Echavarren, J; Leigh, DA; Marcos, V; Singleton, TA or concate me.

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

Name: Diphenylmethanamine. Recently I am researching about N-C CLEAVAGE; METAL-FREE TRANSAMIDATION; PRIMARY CARBOXAMIDES; SECONDARY AMIDES; CARBOXYLIC-ACIDS; AMIDATION; ESTERIFICATION; CARBONYLATION; AMINES; ESTERS, Saw an article supported by the National Research Foundation of Korea (NRF) – Korea government [NRF-2012M3A7B4049655, 2020R1A2C2013420]. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Yang, D; Shin, T; Kim, H; Lee, S. The CAS is 91-00-9. Through research, I have a further understanding and discovery of Diphenylmethanamine

The transamidation of tertiary amides was achievedvianickel catalysis in combination with briphos ligands.N-Methyl-N-phenylbenzamide derivatives reacted with primary amines in the presence of NiCl2/briphos L4 to provide the transamidated products in moderate to good yields. Primary aromatic amines delivered higher product yields than aliphatic amines.

Name: Diphenylmethanamine. About Diphenylmethanamine, If you have any questions, you can contact Yang, D; Shin, T; Kim, H; Lee, S or concate me.

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

Khan, SN; Zaman, MK; Li, RN; Sun, ZK in [Khan, Shah Nawaz; Zaman, Muhammad Kashif; Li, Ruining; Sun, Zhankui] Shanghai Jiao Tong Univ, Sch Pharm, Shanghai Key Lab Mol Engn Chiral Drugs, Shanghai 200240, Peoples R China; [Sun, Zhankui] Chinese Acad Sci, Huzhou Res & Industrializat Ctr Technol, Huzhou 313000, Peoples R China published A General Method for Photocatalytic Decarboxylative Hydroxylation of Carboxylic Acids in 2020, Cited 49. Recommanded Product: 91-00-9. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

A general and practical method for decarboxylative hydroxylation of carboxylic acids was developed through visible light-induced photocatalysis using molecular oxygen as the green oxidant. The addition of NaBH4 to in situ reduce the unstable peroxyl radical intermediate much broadened the substrate scope. Different sp a carbon-bearing carboxylic acids were successfully employed as substrates, including phenylacetic acid-type substrates, as well as aliphatic carboxylic acids. This transformation worked smoothly on primary, secondary, and tertiary carboxylic acids.

Recommanded Product: 91-00-9. About Diphenylmethanamine, If you have any questions, you can contact Khan, SN; Zaman, MK; Li, RN; Sun, ZK or concate me.

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

Meng, GY; Guo, TJ; Ma, TC; Zhang, J; Shen, YC; Sharpless, KB; Dong, JJ in [Meng, Genyi; Guo, Taijie; Ma, Tiancheng; Zhang, Jiong; Shen, Yucheng; Sharpless, Karl Barry; Dong, Jiajia] Univ Chinese Acad Sci, Ctr Excellence Mol Synth, Shanghai Inst Organ Chem, Key Lab Organofluorine Chem,Chinese Acad Sci, Shanghai, Peoples R China published Modular click chemistry libraries for functional screens using a diazotizing reagent in 2019, Cited 33. Formula: C13H13N. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9.

Click chemistry is a concept in which modular synthesis is used to rapidly find new molecules with desirable properties(1). Copper(I)-catalysed azide-alkyne cycloaddition (CuAAC) triazole annulation and sulfur(VI) fluoride exchange (SuFEx) catalysis are widely regarded as click reactions(2-4), providing rapid access to their products in yields approaching 100% while being largely orthogonal to other reactions. However, in the case of CuAAC reactions, the availability of azide reagents is limited owing to their potential toxicity and the risk of explosion involved in their preparation. Here we report another reaction to add to the click reaction family: the formation of azides from primary amines, one of the most abundant functional groups(5). The reaction uses just one equivalent of a simple diazotizing species, fluorosulfuryl azide(6-11) (FSO2N3), and enables the preparation of over 1,200 azides on 96-well plates in a safe and practical manner. This reliable transformation is a powerful tool for the CuAAC triazole annulation, the most widely used click reaction at present. This method greatly expands the number of accessible azides and 1,2,3-triazoles and, given the ubiquity of the CuAAC reaction, it should find application in organic synthesis, medicinal chemistry, chemical biology and materials science.

Formula: C13H13N. About Diphenylmethanamine, If you have any questions, you can contact Meng, GY; Guo, TJ; Ma, TC; Zhang, J; Shen, YC; Sharpless, KB; Dong, JJ or concate me.

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

In 2019.0 CHEM SCI published article about CATALYZED OXIDATIVE CARBONYLATION; DEALKYLATIVE CARBONYLATION; EFFICIENT SYNTHESIS; COUPLING REACTIONS; FUNCTIONALIZATION; PALLADIUM; ACTIVATION; ARYLATION; ACIDS; AMINOCARBONYLATION in [Mu, Qiu-Chao; Bai, Xing-Feng; Chen, Jing; Yang, Lei; Xia, Chun-Gu; Xu, Li-Wen] UCAS, LICP, SRI, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China; [Mu, Qiu-Chao; Nie, Yi-Xue; Bai, Xing-Feng; Yang, Lei; Xu, Zheng; Li, Li; Xu, Li-Wen] Hangzhou Normal Univ, Key Lab Organosilicon Mat Technol Zhejiang Prov, Key Lab Organosilicon Chem & Mat Technol, Minist Educ, Hangzhou 311121, Zhejiang, Peoples R China in 2019.0, Cited 97.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9. Recommanded Product: Diphenylmethanamine

A novel Pd/Cu-cocatalyzed carbonylative cyclization by C-H activation and N-dealkylative C-N bond activation has been developed for the chemoselective construction of synthetically useful heterocycles. The N,N-dimethylamine group on o-indolyl-N,N-dimethylarylamines was found to act as both the directing group and reactive component in this C-H carbonylative cyclization reaction. Furthermore, a unique C-H oxidation/carbonylative lactonization of diarylmethylamines is firstly demonstrated under modified reaction conditions, which could be easily applicable to the one-step synthesis of multi-substituted phthalides bearing an N,O-ketal skeleton that is difficult to access by previously reported methods. Mechanistic studies implicate that Pd/Cu-cocatalyzed C-H oxidation/carbonylative lactonization is a sequential reaction system via Cu-catalyzed C(sp(3))-H oxidation and Pd-catalyzed oxidative carbonylation of the C(sp(2))-H bond. It was found that trace amounts of water are essential to promote the Cu-catalyzed C(sp(3))-H oxidation of diarylmethylamine for the formation of the hydroxyl group, which could act as an in situ-formed directing group in the intramolecular carbonylative lactonization step.

Recommanded Product: Diphenylmethanamine. About Diphenylmethanamine, If you have any questions, you can contact Mu, QC; Nie, YX; Bai, XF; Chen, J; Yang, L; Xu, Z; Li, L; Xia, CG; Xu, LW or concate me.

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

An article Absolute asymmetric Strecker synthesis in a mixed aqueous medium: reliable access to enantioenriched alpha-aminonitrile WOS:000457797000024 published article about CHIRAL-SYMMETRY-BREAKING; AMINO-ACIDS; ENANTIOSELECTIVE SYNTHESIS; ENANTIOMERIC EXCESS; PYRIMIDYL ALKANOL; AMPLIFICATION; AUTOCATALYSIS; ORIGIN; CRYSTALLIZATION; CONJUNCTION in [Miyagawa, Shinobu; Aiba, Shohei; Kawamoto, Hajime; Tokunaga, Yuji] Univ Fukui, Dept Mat Sci & Engn, Bunkyo Ku, Fukui 9108507, Japan; [Kawasaki, Tsuneomi] Tokyo Univ Sci, Dept Appl Chem, Shinjyuku Ku, Tokyo 1628601, Japan in 2019.0, Cited 48.0. SDS of cas: 91-00-9. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9

Without using chiral sources, the Strecker reaction of achiral hydrogen cyanide, p-tolualdehyde and benzhydrylamine gave enantioenriched L- or D-N-benzhydryl-alpha-( p-tolyl) glycine nitriles with up to > 99% ee in a mixed solvent of water and methanol. Therefore, total spontaneous resolution of alpha-aminonitriles could occur through a prebiotic mechanism of alpha-amino acid synthesis. Moreover, it was demonstrated that the repetition of partial dissolution and crystallization of a suspended conglomerate of aminonitrile under solution-phase racemization could generate the enantiomeric imbalance to afford, in combination with the amplification of chirality, an enantioenriched product in every case. Among the 73 experiments that were carried out, D-and L-enriched isomers occurred 36 and 37 times, respectively. This stochastic behavior, under achiral or racemic starting conditions, meets the requirements of the spontaneous absolute asymmetric Strecker synthesis. The implications of the present results for the origin of chirality of alpha-amino acids are discussed.

SDS of cas: 91-00-9. About Diphenylmethanamine, If you have any questions, you can contact Miyagawa, S; Aiba, S; Kawamoto, H; Tokunaga, Y; Kawasaki, T or concate me.

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

An article An Improved Class of Phosphite-Oxazoline Ligands for Pd-Catalyzed Allylic Substitution Reactions WOS:000474812400025 published article about MOLECULAR-ORBITAL METHODS; FORCE-FIELD PARAMETERS; ASYMMETRIC-SYNTHESIS; KINETIC RESOLUTION; ENANTIOSELECTIVE ALLYLATION; CYCLOBUTANE BACKBONE; MODULAR LIGANDS; BASIS-SETS; AB-INITIO; ALKYLATION in [Biosca, Maria; Salto, Joan; Magre, Marc; Pamies, Oscar; Dieguez, Montserrat] Univ Rovira & Virgili, Dept Quim Fis & Inorgan, C Marcel Li Domingo 1, E-43007 Tarragona, Spain; [Norrby, Per-Ola] AstraZeneca Gothenburg, R&D BioPharmaceut, Pharmaceut Sci, Data Sci & Modelling, Pepparedsleden 1, S-43150 Molndal, Sweden; [Norrby, Per-Ola] Univ Gothenburg, Dept Chem & Mol Biol, Kemigarden 4, S-41296 Gothenburg, Sweden in 2019.0, Cited 129.0. Category: amides-buliding-blocks. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9

A method for generation of Pd/phosphite-oxazoline catalysts containing an alkyl backbone chain has been successfully applied to Pd-catalyzed allylic substitution reactions. By carefully selecting the substituents at both the alkyl backbone chain and the oxazoline of the ligand, as well as the configuration of the biaryl phosphite group, high activities (TOF > 8000 mol substrate X (mol Pd X h)(-1)) and excellent enantioselectivities (ee’s up to 99%) have been achieved for many hindered and unhindered substrates with a wide range of C-, O-, and N-nucleophiles (73 substitution products in total). Moreover, DFT and NMR studies of the key Pd-allyl complexes allowed us to better understand the origin of the excellent enantioselectivities observed experimentally. The useful application of the Pd/phosphite-oxazoline catalysts was demonstrated by the syntheses of many chiral carbobicycles, with multiples stereocenters, by simple sequential reactions involving Pd-allylic substitution and either 1,6-enyne cyclization or Pauson-Khand enyne cyclization.

Category: amides-buliding-blocks. About Diphenylmethanamine, If you have any questions, you can contact Biosca, M; Salto, J; Magre, M; Norrby, PO; Pamies, O; Dieguez, M or concate me.

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

Quality Control of Diphenylmethanamine. In 2020.0 ANGEW CHEM INT EDIT published article about CARBONYL-COMPOUNDS; DEOXYGENATION; ALCOHOLS; HYDROGENOLYSIS; 1,2-DIOLS; AMINES; HYDROSILYLATION; ACTIVATION; CONVERSION; MECHANISM in [Fang, Huaquan; Oestreich, Martin] Tech Univ Berlin, Inst Chem, Str 17 Juni 115, D-10623 Berlin, Germany 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.

About Diphenylmethanamine, If you have any questions, you can contact Fang, HQ; Oestreich, M or concate me.. Quality Control of Diphenylmethanamine

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

Recommanded Product: 91-00-9. Authors Chen, DH; Sun, WT; Zhu, CJ; Lu, GS; Wu, DP; Wang, AE; Huang, PQ in WILEY-V C H VERLAG GMBH published article about in [Chen, Dong-Huang; Sun, Wei-Ting; Zhu, Cheng-Jie; Lu, Guang-Sheng; Wu, Dong-Ping; Wang, Ai-E; Huang, Pei-Qiang] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China; [Chen, Dong-Huang; Sun, Wei-Ting; Zhu, Cheng-Jie; Lu, Guang-Sheng; Wu, Dong-Ping; Wang, Ai-E; Huang, Pei-Qiang] Xiamen Univ, Fujian Prov Key Lab Chem Biol, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China; [Wang, Ai-E; Huang, Pei-Qiang] Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Gansu, Peoples R China in 2021.0, Cited 89.0. The Name is Diphenylmethanamine. Through research, I have a further understanding and discovery of 91-00-9

The combination of transition-metal catalysis and organocatalysis increasingly offers chemists opportunities to realize diverse unprecedented chemical transformations. By combining iridium with chiral thiourea catalysis, direct enantioselective reductive cyanation and phosphonylation of secondary amides have been accomplished for the first time for the synthesis of enantioenriched chiral alpha-aminonitriles and alpha-aminophosphonates. The protocol is highly efficient and enantioselective, providing a novel route to the synthesis of optically active alpha-functionalized amines from the simple, readily available feedstocks. In addition, the reactions are scalable and the thiourea catalyst can be recycled and reused.

Recommanded Product: 91-00-9. About Diphenylmethanamine, If you have any questions, you can contact Chen, DH; Sun, WT; Zhu, CJ; Lu, GS; Wu, DP; Wang, AE; Huang, PQ or concate me.

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