Highly Selective Synthetic Method for 1,6-Diols Bearing Enyne Functions: Development of 3,6-Dianion Reagent of 1,2-Hexadien-4-yne Using 1,6-Dibromo-2,4-hexadiyne and Indium
作者:Sundae Kim、Kooyeon Lee、Dong Seomoon、Phil Ho Lee
DOI:10.1002/adsc.200700309
日期:2007.11.5
with an organoindium reagent generated in situ from indium and 1,6-dibromo-2,4-hexadiyne in the presence of lithium iodide in tetrahydrofuran (THF) selectively produced 1,6-diols linked to an allenyne unit with complete regioselectivity and chemoselectivity through 1,2-hexadien-4-yn-3,6-ylation, indicating that the organoindium acted as the 3,6-dianionreagent of 1,2-hexadien-4-yne.
Gold-catalyzed cyclization of enyne-1,6-diols to substituted furans
作者:Sundae Kim、Dongjin Kang、Seunghoon Shin、Phil Ho Lee
DOI:10.1016/j.tetlet.2010.02.026
日期:2010.4
Treatment of enyne-1,6-diols with 5 mol % Ph3PAuCl in the presence of 5 mol % AgOTf as a cocatalyst selectively produced trisubstituted furans in good to excellent yields in dichloromethane at room temperature for 5-10 min through cyclization followed by isomerization. (C) 2010 Elsevier Ltd. All rights reserved.