科研之友
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摘要
Several new 4-thio-4,5-dihydro-2(3H)-furanones were prepared by the conjugate addition reactions of different thioacids, dithioacids, xanthates and dithiocarbamates to 2(5H)-furanones. When 5-methyl-2(5H)-furanone was used as the electrophilic substrate, the reaction was diastereoselective affording exclusively the cis-alpha,beta-disubstituted butanolides. Some adducts were selectively hydrolysed to deliver a free thiol functionality.
- 出版日期2004-3-26
