1-Substituted 1-methylthio-2,4-pentadien-1-yl sulfones (4) smoothly underwent a 1,5-rearrangement of a sulfonyl group by the action of silica gel. Its application to a new synthesis of conjugated dienones is also described.
通过
硅胶的作用,1-取代的1-甲
硫基-2,4-
戊二烯-1-基砜(4)顺利进行了磺酰基的1,5-重排。还描述了其在共轭二烯酮的新合成中的应用。