A Facile and Expeditious Synthesis of Cryptosanguinolentines
作者:Dalip Kumar、Maruthi Kumar. N.、V. S. Rao
DOI:10.1246/cl.2009.156
日期:2009.2.5
A simple and efficient synthesis of naturally occurring cryptosanguinolentines is described. Neat reaction of easily accessible 1-methyl-1,2,3,4-tetrahydroquinolin-4-ones and aryl hydrazines in the presence of p-toluenesulfonic acid at 100 °C rapidly afforded cryptosanguinolentines in very good yields.