proceeding through dual C–H bond cleavage and dual C–C bond formation. The procedure tolerates a series of functional groups, such as methyl, fluoro, chloro, acetyl, methoxy carbonyl, cyano, and trifluoromethyl. Thus, it represents a facile pathway leading to 6-substitutedphenanthridine derivatives. The addition of radical to the isonitrile followed by a radical aromatic cyclization is involved in this
tert-Butyl peroxybenzoate (TBPB)-mediated 2-isocyanobiaryl insertion with 1,4-dioxane: efficient synthesis of 6-alkyl phenanthridines via C(sp3)–H/C(sp2)–H bond functionalization
作者:Jia-Jia Cao、Tong-Hao Zhu、Shun-Yi Wang、Zheng-Yang Gu、Xiang Wang、Shun-Jun Ji
DOI:10.1039/c4cc00743c
日期:——
of 6-alkyl phenanthridines by tert-butyl peroxybenzoate (TBPB)-mediated 2-isocyanobiaryl insertion with 1,4-dioxane was established. Two new C-C bonds were formed in this reaction via a sequentialC(sp(3))-H/C(sp(2))-H bond functionalization under metal-free conditions.