Unusual anisotropic effects from 1,3-dipolar cycloadducts of 4-azidomethyl coumarins

Raviraj A. Kusanur, Manohar V. Kulkarni, Geetha M. Kulkarni, Susanta K. Nayak, Tayur N. Guru Row, Kilivelu Ganesan, Chung-Ming Sun

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

(Chemical Equation Presented) 4-Bromomethylcoumarins (1) reacted with sodium azide in aqueous acetone to give 4-azidomethyl-coumarins (2), which underwent 1,3-dipolar cycloaddition with acetylenic dipolarophiles to give triazoles (3). These triazoles (3) have been found to exhibit interesting variations in the chemical shifts of C 3 -H and C 4 -methylene protons. Protonation studies indicate that the shielding effect of the C 3 -H of coumarin is due to π-electrons of the triazole ring, further supported by diffraction and computational studies.

原文English
頁(從 - 到)91-97
頁數7
期刊Journal of Heterocyclic Chemistry
47
發行號1
DOIs
出版狀態Published - 12 二月 2010

指紋 深入研究「Unusual anisotropic effects from 1,3-dipolar cycloadducts of 4-azidomethyl coumarins」主題。共同形成了獨特的指紋。

引用此