作者:Dinesh Nath、Fraser F. Fleming
DOI:10.1002/chem.201203174
日期:2013.2.4
organolithiums, Grignard reagents, or zincates to sulfinylnitriles triggers a facile sulfinyl–metal exchange to afford N‐ or C‐metalated nitriles. Sulfinyl–magnesium exchange–alkylations efficiently install quaternary and tertiary centers, even in the case of tertiary sulfinylnitriles that contain a highly acidic methine proton. α‐Sulfinylalkenenitriles afford moderately nucleophilic magnesiated nitriles, and
添加有机锂,格氏试剂,或锌酸盐到sulfinylnitriles触发器一个浅显亚磺酰基-金属交换,得到N -或C -金属化的腈。亚磺酰基-镁交换-烷基化有效地建立了四级和三级中心,即使在具有高酸性次甲基质子的叔亚磺酰基腈的情况下也是如此。α-亚磺酰基烯腈提供适度的亲核性镁化腈,通过转化为相应的镁酸酯可以显着提高反应性。亚磺酰基-金属交换非常快,可与季,叔和乙烯基α-亚磺酰基腈有效地进行交换,并且在腈烷基化反应中表现出出色的官能团耐受性。