N-Indolyltriethylborate: A Useful Reagent for Synthesis of C3-Quaternary Indolenines

Lin, Aijun; Yang, Jiong; Hashim, Mohamed

N-Indolyltriethylborate: A Useful Reagent for Synthesis of C3-Quaternary Indolenines

2013

Lin, Aijun | Yang, Jiong | Hashim, Mohamed

N-Indolyltriethylborate was found to be a useful reagent for dearomatizing C3-alkylation of 3-substituted indoles with both activated and nonactivated alkyl halides to give C3-quaternary indolenines, pyrroloindolines, furoindoline, and hexahydropyridoindoline under mild reaction conditions. The utility of these reagents was demonstrated in the syntheses of a pyrroloindoline-4-cholestene hybrid and debromoflustramine B.

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