Gasphase thermolysis above 220° of 2(3H)-oxepinones 2 and 2(3H)-furanones 5 gives carbon monoxide and the corresponding unsaturated carbonyl compounds 3, 4 and 6. The preparative value of these cheletropic processes is demonstrated.
2(3H)-氧杂
环庚烷2和2(3H)-
呋喃酮5在220°以上进行气相热解,得到
一氧化碳和相应的不饱和羰基化合物3、4和6。这些亲油法的制备值得到了证明。