Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5275418 | Tetrahedron Letters | 2011 | 4 Pages |
Abstract
PhI(OCOCF3)2 (PIFA) in the presence of trifluoroacetic acid (TFA) in CH2Cl2 efficiently promotes the oxidative cycloisomerization of 2-propargyl 1,3-dicarbonyl compounds to give 4,5-disubstituted furfuryl alcohols. PIFA in hexafluoroisopropanol (HFIP) or PIFA-BF3·OEt2 in CH2Cl2 bring about the direct formation of furfurals from 2-propargyl 1,3-dicarbonyl compounds. In a few cases, PhIO is suitable for the direct formation of furfurals.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Akio Saito, Toshiyuki Anzai, Asami Matsumoto, Yuji Hanzawa,