A New Synthesis of 3-Substituted Indolines and Indoles
摘要:
3-Phenyl- and 3-alkyl-3-hydroxyindolines were synthesized by intramolecular Barbier reaction of phenyl and alkyl N-(2-iodophenyl)-N-methylaminomethyl ketones with n-BuLi, which were easily prepared from N-methyl-2-iodoaniline and bromomethyl ketones. The treatment of the indolines with acid gave the corresponding indoles in quantitative yields.
Palladium-Catalyzed Synthesis of 3-Acylated Indoles Involving Oxidative Cross-Coupling of Indoles with α-Amino Carbonyl Compounds
作者:Ri-Yuan Tang、Xiao-Kang Guo、Jian-Nan Xiang、Jin-Heng Li
DOI:10.1021/jo402215s
日期:2013.11.15
selective C–N bond oxidative cleavage method to 3-acylated indoles by Pd-catalyzed oxidative cross coupling of indoles with α-aminocarbonylcompounds has been developed; moreover, one-pot synthesis of 3-acylated indoles from 2-ethynylanilines and α-aminocarbonylcompounds has also been established. Importantly, the products 3-acylated indoles can be used to construct polyheterocyclic compound, which can
Cu(OAc)2 and acids promoted the oxidative cleavage of α-aminocarbonyl compounds with amines: efficient and selective synthesis of 2-t-amino-2-imino-carbonyl and 2-amino-2-oxocarbonyl
method for the synthesis of 2-t-amino-2-imino-carbonyl (C) and 2-amino-2-oxocarbonyl (D) compounds has been discovered through a copper-promoted oxidating amidation reactions between α-amino -carbonyl compounds and amines. Promoted by the crucial copper species, perfect selectivity and good to excellent yields could be achieved. This transformation is achieved through CN bond oxidative cleavage and formation
Thiocyanation of α-amino carbonyl compounds for the synthesis of aromatic thiocyanates
作者:Niannian Yi、Mingjing Ouyang、Huimin Liu、Miao Yan、Xiaoyong Wen、Yi Xiong、Bing Yi
DOI:10.1177/1747519820923553
日期:2021.1
A procedure for K2S2O8-mediated thiocyanation of α-amino carbonylcompounds has been developed for the synthesis of aromatic thiocyanates. A series of α-amino carbonylcompounds have been investiga...