<i>N</i>-Indolyltriethylborate: A Useful Reagent for Synthesis of C3-Quaternary Indolenines
                                
                                    
                                        作者:Aijun Lin、Jiong Yang、Mohamed Hashim                                    
                                    
                                        DOI:10.1021/ol4005992
                                    
                                    
                                        日期:2013.4.19
                                    
                                    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.