作者:D. R. Gataullina、D. R. Mogilevtseva、G. N. Nugumanova、S. V. Bukharov、R. G. Tagasheva、R. Ya. Deberdeev
DOI:10.1134/s1070363217090055
日期:2017.9
Reaction of benzoxazole-2-thione with 3,5-di-tert-butyl-4-hydroxybenzylacetate in methanol affords S-(3,5-di-tert-butyl-4-hydroxybenzyl)-2-mercaptobenzoxazole as the major product. Antiradical activity of S- and N-3,5-di-tert-butyl-4-hydroxybenzyl derivatives of benzothiazole(oxazole, imidazole)-2-thione with respect to 2,2-diphenyl-1-picrylhydrazyl is varies widely. S-Benzyl derivatives exhibit higher reactivity at 30A degrees C.
JPS58203976A
申请人:——
公开号:JPS58203976A
公开(公告)日:1983-11-28
Reactions of benzazole-2-thiones with 3,5-di-tert-butyl-4-hydroxybenzyl acetate
作者:R. G. Tagasheva、D. R. Gataullina、I. F. Zaripova、S. V. Bukharov、G. N. Nugumanova、T. R. Deberdeev、Yu. K. Voronina
DOI:10.1134/s1070363217010054
日期:2017.1
The benzylation of benzothiazole(oxazole, imidazole)-2-thiones with 3,5-di-tert-butyl-4-hydroxybenzyl acetate involves either the sulfur or nitrogen atom depending on the reaction conditions. The S- and N-benzylation products of benzazole-2-thiones are kinetically and thermodynamically controlled products, respectively. The use of 3,5-di-tert-butyl-4-hydroxy-benzyl acetate allows sterically hindered