Irradiation of an acetonitrile solution of N-methylglutarimide 3 and an olefin 4 gave oxetanes 5 in a high yield. The oxetanes 5 were converted smoothly to homoallyl alcohols, 3,4-dihydro-6-(2-hydroxyalkyl)-1-methyl-2(1H)-pyridones 6 by refluxing in acidic media.
对N-甲基戊内
酰亚胺3和烯烃4的
乙腈溶液进行辐照,得到了高产率的氧
环戊烷5。这些氧
环戊烷5在酸性介质中回流后,顺利转化为同盟醇3,4-二氢-6-(2-羟烷基)-1-甲基-2(1H)-
吡啶酮6。