期刊
TETRAHEDRON
卷 58, 期 39, 页码 7897-7901出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(02)00897-9
关键词
carbonyl compounds; indium triflate; thioacetalization; transthioacetalization
Protection of a variety of carbonyl compounds as thioacetals using indium triflate, a mild Lewis acid catalyst, was achieved at ambient temperature in very good yield. Transthioacetalization of oxyacetals into thioacetals was also achieved in an excellent yield. A mixture of carbonyl compound and its respective oxyacetal was also completely converted into thioacetal in the presence of indium triflate. (C) 2002 Elsevier Science Ltd. All rights reserved.
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