A convenient and general synthesis of trans-3-hydroxyflavanones from chalcones by dimethyldioxirane epoxidation and subsequent base-catalyzed cyclization
摘要:
2'-Hydroxychalcone epoxides were found to give trans-3-hydroxyflavanone and 2-(alpha-hydroxybenzyl)-3-coumaranone under basic conditions. Epoxidation of 2'-hydroxychalcones with dimethyldioxirane followed by treatment of tetrabutylammonium hydroxide provides a convenient and general method for the synthesis of trans-3-hydroxyflavanones.
A convenient and general synthesis of trans-3-hydroxyflavanones from chalcones by dimethyldioxirane epoxidation and subsequent base-catalyzed cyclization
摘要:
2'-Hydroxychalcone epoxides were found to give trans-3-hydroxyflavanone and 2-(alpha-hydroxybenzyl)-3-coumaranone under basic conditions. Epoxidation of 2'-hydroxychalcones with dimethyldioxirane followed by treatment of tetrabutylammonium hydroxide provides a convenient and general method for the synthesis of trans-3-hydroxyflavanones.
ADAM, WALDEMAR;HADJIARAPOGLOU, LAZAROS;SMERZ, ALEX, CHEM. BER., 124,(1991) N, C. 227-232
作者:ADAM, WALDEMAR、HADJIARAPOGLOU, LAZAROS、SMERZ, ALEX
DOI:——
日期:——
A convenient and general synthesis of trans-3-hydroxyflavanones from chalcones by dimethyldioxirane epoxidation and subsequent base-catalyzed cyclization
作者:Tamás Patonay、Gábor Tóth、Waldemar Adam
DOI:10.1016/s0040-4039(00)60674-3
日期:1993.8
2'-Hydroxychalcone epoxides were found to give trans-3-hydroxyflavanone and 2-(alpha-hydroxybenzyl)-3-coumaranone under basic conditions. Epoxidation of 2'-hydroxychalcones with dimethyldioxirane followed by treatment of tetrabutylammonium hydroxide provides a convenient and general method for the synthesis of trans-3-hydroxyflavanones.