作者:G. Appendino、G. Cravotto、G. M. Nano、G. Palmisano
DOI:10.1080/00397919208019073
日期:1992.8
the dianion of ethyl 3-(2-hydroxyphenyl)-3-oxopropanoate can be regioselectively alkylated with isoprenyl bromides to give, after hydrolytic work-up, the corresponding 3-substituted-4-hydroxycoumarins.