Reaction between Chalcones, 1,3-Dicarbonyl Compounds, and Elemental Sulfur: A One-Pot Three-Component Synthesis of Substituted Thiophenes
A simple and atom-economic synthesis of highly substituted thiophenes is demonstrated. Heating a solution of a chalcone and a linear/cyclic 1,3-dicarbonyl compound with elemental sulfur in CH 3 CN in the presence of NEt 3 at 80 °C af
Aqueous Iodine(III)-mediated stereoselective oxidative cyclization for the synthesis of functionalized fused dihydrofuran derivatives
("Figure Presented") An efficient aqueous oxidative cyclization mediated by the combination of iodosobenzene with tetra-(n-butyl)ammonium iodide provides a new convenient and useful route to functionalized fused dihydrofuran derivatives in moderate to excellent yields with high diastereoselectivities.
Ye, Yang,Wang, Linfei,Fan, Renhua
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p. 1760 - 1763
(2010/05/01)
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