Synthesis of New o-Quinone Methides from β-Lapachone Analogues
作者:Vitor Ferreira、Sabrina Ferreira、Daniel Gonzaga、Fernando de Carvalho da Silva、Katia de Lima Araújo
DOI:10.1055/s-0030-1260778
日期:2011.7
In this work, we synthesized six new o-quinone methides from β-lapachone analogues by treating β-lapachone with acetone and a catalytic amount of iodine under thermal conditions and microwave irradiation. The yields of isolated o-quinone methides ranged from 20-80%. During the reactions, the formation of α-pyran naphthoquinones was observed; the yields varied depending upon the substituent. The reactions