A new and efficient general method for the synthesis of 2-spirobenzopyrans: First synthesis of cyclic analogues of precocene I and related compounds
作者:Suneel Y Dike、Jaysukhlal R Merchant、Niteen Y Sapre
DOI:10.1016/s0040-4020(01)86481-4
日期:1991.1
A new synthesis of spirobenzopyran has been accomplished by Friedel- Crafts reaction of various m-dihydroxybenzenes and cycloalkylidene acetic acid in the presence of a Lewis acid.
在路易斯酸的存在下,各种间二羟基苯与环亚烷基乙酸的弗里德尔工艺合成反应完成了螺并苯并吡喃的新合成。