Removal of toluene-p-sulphonyl groups from sulphonamides. Part 5. Reactions of phenylglyoxal imines and some tosylimines
作者:William R. McKay、George R. Proctor
DOI:10.1039/p19810002443
日期:——
N-tosylarylimines also react with nucleophiles to give useful products. Phenacylimidates underwent [2 + 2]cycloadditions with diphenylketen; such reactions gave complex results with phenacylimines, but the latter reacted with conjugated dienes in the presence of BF3 to give [2 + 4]cycloaddition products in good yield.
苯乙二醛茴香醚单体已显示出与几种亲核试剂反应,并且已经阐明了产物的结构。各种N-甲苯磺酰基嘧啶也与亲核试剂反应以产生有用的产物。苯乙酰亚胺与二苯甲酮进行[2 + 2]个环加成;此类反应与苯乙酰亚胺类化合物产生复杂的结果,但后者在BF 3的存在下与共轭二烯反应,以高收率得到[2 + 4]环加成产物。