作者:Lutz Aßmann、Tony Debaerdemaeker、Willy Friedrichsen
DOI:10.1016/s0040-4039(00)92033-1
日期:1991.2
The reaction of the transient furoisoxazole 4 with dimethyl acetylenedicarboxylate results in the formation of oxepine 9k. The boat-shaped structure of 9k has been confirmed by X-ray crystallography. The experimental findings are in accord with quantum chemical calculations (AM1, PM3).