Indoles undergo smooth alkylation with N-tosylazetidines in the presence of indium(III) bromide in dichloroethane under mild conditions to produce the corresponding C-3 substituted indole derivatives in good to high yields and with high selectivity. This is the first report on the alkylation of indoles with activated azetidines.
在
二氯乙烷中,在
溴化
铟(III)存在下,
吲哚与 N-对
甲苯磺酰基氮杂
环丁烷在温和条件下发生顺利的烷基化反应,生成相应的 C-3 取代的
吲哚衍
生物,产率高,选择性好。这是关于
吲哚与活化的氮杂
环丁烷进行烷基化反应的首次报道。