[4+2] and [4+3] catalytic cycloadditions of allenes
نویسندگان
چکیده
منابع مشابه
Metal-catalyzed [2+2+1] cycloadditions of 1,3-dienes, allenes, and CO.
Article: Step economy is a preeminent goal of synthesis. [1] It influences the length, efficiency, cost, time, separation, and environmental impact of a synthesis. Step economy is favored by the use of single, serial, or multicomponent reactions that proceed in one operation with a great increase in target revelant complexity. The design or discovery of such reactions is thus critical to extend...
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متن کاملReactivity and Chemoselectivity of Allenes in Rh(I)-Catalyzed Intermolecular (5 + 2) Cycloadditions with Vinylcyclopropanes: Allene-Mediated Rhodacycle Formation Can Poison Rh(I)-Catalyzed Cycloadditions
Allenes are important 2π building blocks in organic synthesis and engage as 2-carbon components in many metal-catalyzed reactions. Wender and co-workers discovered that methyl substituents on the terminal allene double bond counterintuitively change the reactivities of allenes in [Rh(CO)2Cl]2-catalyzed intermolecular (5 + 2) cycloadditions with vinylcyclopropanes (VCPs). More sterically encumbe...
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ژورنال
عنوان ژورنال: Chem. Soc. Rev.
سال: 2014
ISSN: 0306-0012,1460-4744
DOI: 10.1039/c4cs00024b