29546-14-3Relevant articles and documents
One-Pot Synthesis of N-Alkyl Benzotriazoles via a Br?nsted Acid-Catalyzed Three-Component Reaction
Wang, Xiangdong,Jia, Chunqi,Feng, Yadong,Wang, Lianhui,Cui, Xiuling
, p. 374 - 378 (2018)
A novel three-component condensation reaction of benzotriazoles, aldehydes and tertiary anilines efficiently catalyzed by readily available organic acid p-toluenesulfonic acid (PTSA) has been developed. A series of N-alkyl benzotriazoles were synthesized in up to 97% yield for 21 examples starting from anilines, benzotriazoles and formaldehyde. This strategy features a simple system, atom economy, environmental friendliness, high efficiency, excellent regioselectivity, good functional group tolerance, easily available starting materials, and cheap catalyst. The mechanistic studies indicated that aza quinone methide was probably involved as an intermediate in this transformation. (Figure presented.).
Synthesis of 1H-benzotriazoles via reductive amination on solid supports
Zimmermann, Viktor,Müller, Rainhard,Br?se, Stefan
, p. 278 - 280 (2008/09/21)
An efficient synthesis of N-benzyl-1H-benzotriazoles utilizing a two-step reductive amination reaction on solid supports has been achieved. The method is suitable for combinatorial synthesis. Georg Thieme Verlag Stuttgart.
Benzotriazole-Mediated Stereoselective Olefination of Carboxylic Esters: Transformation of α-Amino Acid Esters into Chiral Allylamines
Katritzky, Alan R.,Cheng, Dai,Li, Jianqing
, p. 3438 - 3444 (2007/10/03)
Diastereoselective trans-olefinations of carboxylic esters 3a-h have been accomplished using benzylic or allylic benzotriazole derivatives 1a-e to prepare α-(benzotriazol-1-yl) ketones 4a-i, for the subsequent reduction of 4a-i, and finally for low-valent titanium-effected dehydroxybenzotriazolylation.1 N-Protected α-amino acid esters 9a-c and 15 thus give allylamines 13a-e and 19 with virtually full retention of chirality. Mechanistic aspects of the dehydroxybenzotriazolylation are discussed.