Construction of C(CO)–C(CO) Bond via NHC-Catalyzed Radical Cross-Coupling Reaction
作者:Hai-Bin Yang、Xiao-Fang Jin、Hui-Ying Jiang、Wenwei Luo
DOI:10.1021/acs.orglett.3c00272
日期:2023.3.24
A C(sp2)–C(sp2) bond can be constructed via a photoredox/N-heterocyclic carbene (NHC)-cocatalyzed radical cross-couplingreaction, which provides a complementary strategy to classic electron pair processes. The present protocol represents the first example of an NHC-catalyzed two-component radical cross-couplingreaction involving C(sp2)-centered radical species. The decarboxylative acylation of oxamic
Atom transfer carbonylation using ionic liquids as reaction media
作者:Takahide Fukuyama、Takaya Inouye、Ilhyong Ryu
DOI:10.1016/j.jorganchem.2006.08.072
日期:2007.1
Photo-induced ATC reactions of RI, CO, and amines to produce amides, were examined using ionic liquids, such as [bmim]PF6 and [bmim]NTf2, as reaction media in the presence of a catalytic amount of a Pd-carbene complex. When the primary alkyl iodide was used, the yield of the amide was lowered due to competing S(N)2 reactions between RI and amines, whereas the reaction of the tertiary alkyl iodides was dependent on the structure of the substrates. ATC reactions of a wide variety of secondary RI proceeded smoothly when ionic liquids were used as reaction media. The Pd-catalyst and ionic liquid could also be recycled. (c) 2006 Elsevier B.V. All rights reserved.