Synthesis of Benzo[<i>a</i>]carbazole Derivatives from β-(2-Arylindolyl)nitroalkanes via Mn(OAc)<sub>3</sub>-mediated Cyclization
作者:Su Yeon Kim、Jin Woo Lim、Beom Kyu Min、Jae Nyoung Kim
DOI:10.1002/bkcs.10989
日期:2016.11
and coppercatalyzed synthesis via α-C-arylation of ketones. Recently, we also reported the synthesis of benzo[a]carbazoles from 2-arylindoles via sequential propargylation, propargyl–allenyl isomerization, and 6π-electrocyclization approach, as shown in Scheme 1. Various 5-benzyland 5-methylbenzo[a]carbazoles have been synthesized; however, 5-unsubstituted benzo[a]carbazoles could not be synthesized
Direct Conversion of 3-(2-Nitroethyl)-1H-Indoles into 2-(1H-Indol-2-yl)Acetonitriles
作者:Alexander V. Aksenov、Nicolai A. Aksenov、Elena V. Aleksandrova、Dmitrii A. Aksenov、Igor Yu. Grishin、Elena A. Sorokina、Allison Wenger、Michael Rubin
DOI:10.3390/molecules26206132
日期:——
The recently discovered [4+1]-spirocyclization of nitroalkenes to indoles provided a convenient new approach to 2-(1H-indol-2-yl)acetonitriles. However, this reaction was complicated by the formation of inert 3-(2-nitroethyl)-1H-indole byproducts. Herein, we offer a workaround this problem that allows for effective transformation of the unwanted byproducts into acetonitrile target molecules.