Ray, Sutapa; Mal, Dipakranjan, Journal of the Indian Chemical Society, 2010, vol. 87, # 7, p. 833 - 836
作者:Ray, Sutapa、Mal, Dipakranjan
DOI:——
日期:——
SIMONEAU, BRUNO;BRASSARD, PAUL, TETRAHEDRON, 44,(1988) N 4, 1015-1022
作者:SIMONEAU, BRUNO、BRASSARD, PAUL
DOI:——
日期:——
A convenient synthesis of naturally occurring quinizarins
作者:Bruno Simoneau、Paul Brassard
DOI:10.1016/s0040-4020(01)85881-6
日期:1988.1
A general and regiospecific method for the preparation of quinizarins involves the cycloaddition of electron-rich dienes. Advantageous syntheses of several natural products, 2-methylquinizarin, islandicin, digitopurpone, erythroglaucin, 5-0-methylislandicin and 8-0-methyl-digitopurpone illustrate this procedure. A structure attributed to ventinone B is incorrect and 1,4,8-trihydroxy-6-methylanthraquinone