Electronically modified amine substituted alkynols for regio-selective synthesis of dihydrofuran derivatives
作者:Vijay V、Manjusha V. Karkhelikar、B. Sridhar、Nedaossadat Mirzadeh、Suresh Bhargava、Pravin R. Likhar
DOI:10.1039/c5ob02033f
日期:——
efficient and simple approach has been developed for the regio-selective synthesis of iodo-substituted dihydrofurans from amine substituted alkynols. The resulting iodo-substituted dihydrofurans have been further diversified by C–C couplings and C–N coupling reactions to afford a diverse range of substituted dihydrofuranderivatives.
Amide Oxygen-Assisted Palladium-Catalyzed Hydration of Alkynes
作者:Zhenming Zhang、Lihuan Wu、Jianhua Liao、Wanqing Wu、Huanfeng Jiang、Jianxiao Li、Jiawei Li
DOI:10.1021/acs.joc.5b01178
日期:2015.8.7
oxygen-assisted palladium-catalyzed hydration reaction of alkynes is realized to prepare a series of o-acylacetanilide derivatives with high yield, and single regioselectivity under mild reaction conditions. This transformation is simple, practical, and can be performed on a gram scale. Evaluation of the mechanism shows that the reaction should involve an oxypalladation process, and the 1,3-oxazine compound