Synthesis of optically active 2-substituted azetidine-2-carbonitriles from chiral 1-arylethylamine <i>via</i> α-alkylation of <i>N</i>-borane complexes
作者:Eiji Tayama、Nobuhiro Nakanome
DOI:10.1039/d1ra04585g
日期:——
The base-promoted α-alkylation of N-((S)-1-arylethyl)azetidine-2-carbonitriles 3via formation of their N-borane complexes 4 was investigated. For example, treatment of diastereomerically pure borane N-((S)-1'-(4''-methoxyphenyl)ethyl)azetidine-2-carbonitrile complex (1S,2S,1'S)-4b with 1.2 equivalents of LDA at -78 °C followed by 1.3 equivalents of benzyl bromide at -78 °C and warming to room temperature