Direct preparation of benzylic manganese reagents from benzyl halides, sulfonates, and phosphates and their reactions: applications in organic synthesis
作者:YoungSung Suh、Jun-sik Lee、Seoung-Hoi Kim、Reuben D Rieke
DOI:10.1016/s0022-328x(03)00500-x
日期:2003.11
The use of highly active manganese (Mn)*, prepared by the Rieke method, was investigated for the direct preparation of benzylic manganese reagents. The oxidative addition of the highly active manganese to benzylic halides was easily completed under mild conditions. Moreover, benzylic manganese sulfonates and phosphates were prepared by direct oxidative addition of Mn* to the carbon–oxygen bonds of
Convenient Syntheses of 3-Aryl-3,4-Dihydroisocoumarins
作者:Rohan A. Limaye、Augustine R. Joseph、Arun D. Natu、Madhusudan V. Paradkar
DOI:10.3184/174751915x14258938697567
日期:2015.4
A convenient method for the synthesis of naturally occurring 3,4-dihydroisocoumarins by judicious use of Friedel-Craft acylation, regioselective formylation and oxidative cyclisation reactions is described. O-methylated analogues of montroumarin and thunberginols C and D and have been synthesised using 3,5-dimethoxyphenylacetic acid as a starting material. Furthermore, the starting material 3,5-dimethoxyphenylacetic
描述了一种通过明智地使用 Friedel-Craft 酰化、区域选择性甲酰化和氧化环化反应合成天然存在的 3,4-二氢异香豆素的方便方法。使用 3,5-二甲氧基苯乙酸作为起始材料合成了 montroumarin 和 thunberginol C 和 D 的 O-甲基化类似物。此外,原料3,5-二甲氧基苯乙酸是通过涉及氧化Nef反应的路线合成的。
Benzylic Manganese Halides, Sulfonates, and Phosphates: Preparation, Coupling Reactions, and Applications in Organic Synthesis
作者:Seung-Hoi Kim、Reuben D. Rieke
DOI:10.1021/jo991478s
日期:2000.4.1
The use of highly active manganese, prepared by the Rieke method, for the direct preparation of benzylic manganese reagents was investigated. The oxidative addition of the highly active manganese (Mn) to benzylic halides was easily completed under mild conditions. More importantly, benzylic manganese sulfonates and phosphates were prepared by direct oxidative addition of Mn to the carbon-oxygen bonds