期刊
SYNTHETIC COMMUNICATIONS
卷 35, 期 1, 页码 153-160出版社
TAYLOR & FRANCIS INC
DOI: 10.1081/SCC-200046534
关键词
lactones; cyclization; trifluoromethanesulfonic acid; unsaturated carboxylic acids
The trifluoromethanesulfonic acid-catalyzed cyclization of various differently substituted unsaturated carboxylic acids affords selectively substituted lactones in good yields. The reactions use 0.5 to 5% molar ratio of catalyst and can be run without solvent.
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