toluene) with cinnamyl bromide yielded neither the expected cinnamyl peroxide nor its Kornblum-DeLaMare fragmentation products, cinnamaldehyde (4) and cinnamyl alcohol. Instead we observed the novel formation of dicinnamyl ether and 2,3-epoxycinnamylaldehyde dicinnamyl acetal (88% yield). Benzyl bromide reacted with O2−• in the presence of 4 yielding dibenzyl ether and epoxycinnamaldehyde dibenzyl acetal
O 2- •(在
甲苯中)与
肉桂基溴的反应既未产生预期的肉桂基过氧化物,也未生成其Kornblum-DeLaMare裂解产物,
肉桂醛(4)和
肉桂醇。相反,我们观察到新形成的二肉桂基醚和2,3-环氧肉桂基醛二肉桂基
缩醛(88%收率)。苄基
溴在4存在下与O 2- •反应,生成二苄基醚和环氧
肉桂醛二苄基
乙缩醛。当与CH 3 I重复反应时,相应的环氧
肉桂醛二甲基
乙缩醛是主要产物。