Synthesis of N-aryl substituted, five- and six-membered azacycles using aluminum-amide complexes
作者:Balaji L. Korbad、Sang-Hyeup Lee
DOI:10.1039/c4cc04111a
日期:——
Synthesis of N-arylsubstituted, five- and six-membered azacycloalkanes, isoindolines and tetrahydroisoquinolines, has been described. In this synthesis, cyclic ethers (n = 1, 2) were treated with dimethylaluminum-amide reagents, derived from a range of aryl amines and trimethylaluminum, to afford the corresponding azacycles in good yields.
Substrate-controlled divergent synthesis of polycyclic indoloazepines and indolodiazepines <i>via</i> 1,5-hydride shift/7-cyclization cascades
作者:Siyuan Liu、Jingping Qu、Baomin Wang
DOI:10.1039/c8cc03804j
日期:——
Novel and practical acid-catalyzed cyclization of 2-indolyl aryl carbinols via tandem dehydration/1,5-hydride shift/7-cyclization sequences has been developed. By appropriate variation of the substrate, diverse polycyclic-fused indoles were synthesized in good yield, thus demonstrating the high efficiency, transition-metal-free nature, and high step/atom economy of the synthesis strategy.