Year 2007, Month 10 (Section Brief Communications, Page 2121)
Ring expansion in 5-aryl-3-arylmethylidenefuran-2(3H )-ones by the reaction with ethyl diazoacetate
I. E. Kamneva, O. V. Burukhina, and A. Yu. Egorova
Reaction of arylmethylidene derivatives of furan-2(3H )-one with ethyl diazoacetate is accompanied by elimination of nitrogen and leads to the substituted pyran-3(2H )-ones.
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