Blue Light-Promoted Formal [4+1]-Annulation of Diazoacetates with <i>o</i>-Aminoacetophenones: Synthesis of Polysubstituted Indolines and Computational Study
作者:Jinzhou Chen、Shuhao Liu、Xinxin Lv、Kemiao Hong、Jinping Lei、Xinfang Xu、Wenhao Hu
DOI:10.1021/acs.joc.0c01974
日期:2020.11.6
A blue light-promoted formal [4+1]-annulation of diazoacetates with o-aminoacetophenones has been reported, which provides an environmentally friendly method for the synthesis of polysubstituted indoline derivatives in moderate to good yields with excellent diastereoselectivities. Detailed mechanistic studies through density functional theory calculations reveal that the (E)-enol species is the key
Kempter,G. et al., Journal fur praktische Chemie (Leipzig 1954), 1972, vol. 314, # 3-4, p. 543 - 556
作者:Kempter,G. et al.
DOI:——
日期:——
Copper-Mediated Selective C–H Activation and Cross-Dehydrogenative C–N Coupling of 2′-Aminoacetophenones
作者:Andivelu Ilangovan、Gandhesiri Satish
DOI:10.1021/ol402750r
日期:2013.11.15
Isatins were obtained by cross-dehydrogenative C-N annulation and dealkylative C-N annulation of 2'-N-aryl/alkylaminoacetophenones and 2'-N,N-dialkylaminoacetophenones respectively in the presence of Cu(OAc)(2)center dot H2O/NaOAc/air. However, on reaction with CuBr, 2'-N-benzylaminoacetophenones underwent selective oxidation of an a-methylene group of amine rather than the 2-acetyl group to provide corresponding benzamides exclusively. Base played an important role in selective oxidation by lowering the temperature and time.