作者:Salvatore D. Lepore、Anjan K. Bhunia、Pamela Cohn
DOI:10.1021/jo051241y
日期:2005.9.1
synthesis and unique reactivity of a series of arylsulfonate-based nucleophile assisting leaving groups (NALG) containing oligomeric ether units (including crown ethers) attached to the arylsulfonyl ring in the ortho orientation are described. The reactions of a variety of these ether-containing alkyl sulfonates with metal halides proceeded at substantially greater rates than electronically similar
描述了一系列基于芳基磺酸盐的亲核试剂的合成和独特的反应性,该亲核试剂有助于在邻位方向上连接至芳基磺酰基环的含低聚醚单元(包括冠醚)的离去基团(NALG)。各种这些含醚的烷基磺酸盐与金属卤化物的反应比电子类似的磺酸盐的反应速率大得多。在亲核取代反应中,相对于相应的钠盐和钾盐,这些含醚的离去基团还显示出对卤化锂的显着选择性。