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Alkyl Propiolates Participated [3+2] Annulation for the Switchable Synthesis of 1,5‐ and 1,4‐Disubstituted 1,2,3‐Triazoles Containing Ester Side Chain
Author(s) -
Cao Shuo,
Liu Yunyun,
Hu Changfeng,
Wen Chengping,
Wan JiePing
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201801366
Subject(s) - annulation , tosyl , chemistry , alkyl , azide , hydrazine (antidepressant) , enamine , combinatorial chemistry , organic chemistry , medicinal chemistry , catalysis , biochemistry
By means of a featured enamine activation, the alkyl propiolates have been successfully employed in the [3+2] annulation for the synthesis of 1,2,3‐triazoles. The synthesis of both 1,4‐ as well as the hardly available 1,5‐disubstituted 1,2,3‐triazoles can be selectively accessed by using tosyl azide and tosyl hydrazine as nitrogen source, respectively.