Ring expansion in 5-aryl-3-arylmethylidenefuran-2(3H)-ones by the reaction with ethyl diazoacetate
作者:I. E. Kamneva、O. V. Burukhina、A. Yu. Egorova
DOI:10.1007/s11172-007-0332-5
日期:2007.10
Reaction of arylmethylidene derivatives of furan-2(3H)-one with ethyldiazoacetate is accompanied by elimination of nitrogen and leads to the substituted pyran-3(2H)-ones.