Cascade Radical Reactions via α-(Arylsulfanyl) imidoyl Radicals: Competitive [4+ 2] and [4+ 1] Radical Annulations of Alkynyl Isothiocyanates with Aryl Radicals §

…, M Minozzi, D Nanni, P Spagnolo…

文献索引：Benati, Luisa; Montevecchi, Pier Carlo; Spagnolo, Piero Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 99 - 104

全文：HTML全文

被引用次数: 42

摘要

Aryl radicals react with 2-(2-phenylethynyl) phenyl isothiocyanate through a novel radical cascade reaction entailing formation of α-(arylsulfanyl) imidoyl radicals and affording a new class of compounds, ie thiochromeno [2, 3-b] indoles. These derivatives are formed as mixtures of substituted analogues arising from competitive [4+ 2] and [4+ 1] radical annulations. The isomer ratio is strongly dependent on the aryl substituent and is ...