Heterobimetallic Pd–Sn Catalysis: Michael Addition Reaction with C-, N-, O-, and S-Nucleophiles and in Situ Diagnostics
作者:Debjit Das、Sanjay Pratihar、Sujit Roy
DOI:10.1021/jo302643v
日期:2013.3.15
An efficient Michael addition reaction of differently substituted enones with carbon, sulfur, oxygen, and nitrogen nucleophiles has been achieved by a new heterobimetallic "Pd-Sn" catalyst system. The nature of the catalytically relevant species and their interactions with the enone moiety has been examined by spectroscopy. The effect of ligand and the coordination mode of enone with "Pd-Sn" heterobimetallic system have been investigated by kinetics and DFT studies. A straightforward application of this methodology is shown in the synthesis of 1,4-oxathiepane core.
Amphiphilic methyleneamino synthon through organic dye catalyzed-decarboxylative aminoalkylation
作者:Li Chen、Chin Sheng Chao、Yuanhang Pan、Sheng Dong、Yew Chin Teo、Jian Wang、Choon-Hong Tan
DOI:10.1039/c3ob41091a
日期:——
The utilization of a photo-induced synthon generated from N-phenyl glycine by an organic dye and visible light irradiation is disclosed. The intermediate could be coupled with either a radical or a nucleophile in a simple operation to afford several natural product-like compounds.