A New Gold-Catalyzed C−C Bond Formation
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About: This article is published in Angewandte Chemie. The article was published on 03 Jul 2000. The article focuses on the topics: Homogeneous catalysis & Organogold chemistry.
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Citations
Silver-Catalyzed Rearrangement of Propargylic Sulfinates to Allenic Sulfones
Michael Harmata,Chaofeng Huang +1 more
TL;DR: In this paper, propargylic sulfinate esters with 2 mol % of silver hexafluoroantimonate were treated to produce allenic sulfones in essentially quantitative yield.
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Formation of allenyl ketones, 3-ethynylcoumarins, and arylfurans, furylfurans, and furylthiophenes by flash vacuum thermolysis of 3-methylidenefuran-2(3H)-ones.
TL;DR: Flash vacuum thermolysis of 3-methylidenefuran-2(3H)-ones 3 causes cheletropic extrusion of CO with formation of allenyl ketones 4, and the presence of strongly electron-withdrawing groups (nitroaryl or acetyl) on the acylallene moiety causes rearrangement to give 2-arylfurans 10 and 13 as well as 2-furylthiophenes 16.
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