A CuBr-mediated aerobic reaction of 2-alkynylbenzaldehydes and primary amines: synthesis of 4-bromoisoquinolones
作者:Pei Chui Too、Shunsuke Chiba
DOI:10.1039/c2cc33426g
日期:——
A method for synthesis of 4-bromoisoquinolones has been developed starting from 2-alkynylbenzaldehydes and primary amines mediated by CuBr under an O2 atmosphere, where CuBr plays multiple roles to facilitate the present reactions.
Palladium-catalyzed domino Heck/intermolecular cross-coupling: efficient synthesis of 4-alkylated isoquinoline derivatives
作者:Tuanli Yao、Tao Liu、Changhui Zhang
DOI:10.1039/c6cc10075a
日期:——
A highly efficient Pd-catalyzed Heck-type cascade process with 2-(1-alkynyl)benzaldimines has been developed, which provides access to a broad range of 4-alkylated isoquinoline derivatives in moderate to good yields. The [sigma]-alkylpalladium(II)...
Rhodium complexes catalyze carbonylation of 2-alkynylbenzaldehyde 1 under water-gas shift reaction conditions to give novel lactone 2 as a major product (up to 59% yield), the structure of which is a tricyclic ring system.
The first transition-metal-free synthesis of 2,3-diarylindenones with tunable selectivity via tandem annulation of 2-alkynylbenzaldehydes with phenols has been developed.
Synthesis of 3-aminoindenes and <i>cis</i>-1-aminoindanes by Zn(OTf)<sub>2</sub>-catalyzed cyclization of <i>o</i>-alkynylbenzaldehydes with tertiary alkyl primary amines
作者:Tuanli Yao、Rui Zhu、Tao Liu
DOI:10.1039/d3cc04180h
日期:——
Using Zn(OTf)2 as catalyst, a highly regio- and chemo-selective cyclocarboamination of o-alkynylbenzaldehydes with tertiaryalkylprimaryamines was realized to access 3-aminoindenes with different substitution patterns from previously reported methods. The full reduction of the iminoindenone intermediates affords cis-1-amino-2-arylindanes with excellent diastereoselectivity. Mechanistically, the reaction