144223-29-0Relevant articles and documents
Sulfonyl derivatives of benzotriazole: Part 1. A novel approach to the activation of carboxylic acids
Katritzky, Alan R.,Shobana,Pernak, Juliusz,Afridi,Fan, Wei-Qiang
, p. 7817 - 7822 (1992)
1-Acylbenzotriazoles (8, R = Me, Et, n-Bu and Ph) are prepared in good yields by fusion of benzotriazole and acid chlorides at 80 - 100°C. In cases when the corresponding acid chlorides are not available, 1-acylbenzotriazoles are conveniently available from 1-(1-methanesulfonyl) benzotriazole and the respective carboxylic acids as illustrated by the preparation of 2-, 3-, and 4-pyridoyl-, 2-pyrrolylcarbonyl- and 2-furoyl-benzotriazole in yields of 80 - 95%. Preparations of two sulfonyl derivatives of benzotriazole are also described.
An Improved Synthesis of Polyfunctional Acyl Azides in PEG 400
Widyan, Khalid
, p. 120 - 126 (2021/03/16)
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Preparation of polyfunctional acyl azides
Katritzky, Alan R.,Widyan, Khalid,Kirichenko, Kostyantyn
, p. 5802 - 5804 (2008/02/09)
(Chemical Equation Presented) A general synthesis of acyl azides from the corresponding N-acyl benzotriazoles is described. The procedure affords acyl azides in good yields and avoids the use of acid activators and NO+ equivalents typically emp
Regiospecific C-acylation of pyrroles and indoles using N-acylbenzotriazoles
Katritzky, Alan R.,Suzuki, Kazuyuki,Singh, Sandeep K.,He, Hai-Ying
, p. 5720 - 5723 (2007/10/03)
Reactions of pyrrole (2) or 1-methylpyrrole (4) with readily available N-acylbenzotriazoles 1a - g (RCOBt, where R = 4-tolyl, 4-nitrophenyl, 4-diethylaminophenyl, 2-furyl, 2-pyridyl, 2-indolyl, or 2-pyrrolyl) in the presence of TiCl4 produced 2