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Synthesis 2019; 51(02): 470-476
DOI: 10.1055/s-0037-1610277
DOI: 10.1055/s-0037-1610277
paper
An Improved N-Acylation of 1H-Benzotriazole Using 2,2′-Dipyridyldisulfide and Triphenylphosphine
Science and Engineering Research Board (SERB), Department of Science & Technology, New Delhi (Grant No. EMR/2016/001123).Further Information
Publication History
Received: 07 July 2018
Accepted after revision: 23 August 2018
Publication Date:
17 September 2018 (online)
This manuscript is dedicated to the late Prof. Alan R. Katritzky for his contributions to benzotriazole chemistry.
Abstract
A novel path has been developed for the conversion of carboxylic acids into the corresponding N-acylbenzotriazoles by using 2,2′-dipyridyl disulfide/PPh3 in anhydrous dichloromethane in the presence of 1H-benzotriazole. Mild reaction conditions, short reaction time, easy in handling, wide substrate scope, availability of reagents involved, and moreover avoiding the use of base makes this protocol quite useful for the laboratory practices for N-acylbenzotriazole synthesis.
Supporting Information
- Supporting information for this article is available online at https://doi.org/10.1055/s-0037-1610277. Copies of 1H and 13C NMR for all the prepared compounds are provided.
- Supporting Information
- CIF File
-
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