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ChemInform Abstract: Stereoselective Synthesis of (.+-.)-(cis-6-Methyltetrahydropyran-2-yl) acetic Acid.

✍ Scribed by P. VARELIS; A. J. GRAHAM; B. L. JOHNSON; B. W. SKELTON; A. H. WHITE


Book ID
112020961
Publisher
John Wiley and Sons
Year
2010
Weight
31 KB
Volume
26
Category
Article
ISSN
0931-7597

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Similar cyclizations to tetrahydropyrans are known [lo] to occur when 4-methyl-4-pentcn-2-01 Is condensed with aldehydes under acidic conditions (Kriewitz-Prim reaction [l I]). A /I-alkenyloxyacrylate cyclization has already found use in a stereoselective synthesis of (i)-cis-a-irone [ 161.