期刊
TETRAHEDRON
卷 68, 期 38, 页码 7775-7781出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2012.07.048
关键词
Indium(III) triflate; Transacetalisation; Glycerol valorisation; Solvent-free reactions; Tandem reaction protocol
资金
- Engineering and Physical Services Research Council
- Royal Society of Chemistry
Acyclic acetals and ketals undergo transacetalisation in the presence of catalytic quantities of indium(III) triflate (In(OTf)(3)) and diols or triols under solvent-free conditions to generate the corresponding cyclic acetals and ketals in excellent yield. The methodology has been further developed to encompass a tandem acetalisation-acetal exchange protocol, which provides a facile and high yielding route to cyclic ketals from unreactive ketones under very mild reaction conditions. (C) 2012 Elsevier Ltd. All rights reserved.
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