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Improved procedure for 3,4-dihydro-1H-2-benzopyran ring closure. A general access to 3-substituted isochromanes

Authors
Journal
Tetrahedron Letters
0040-4039
Publisher
Elsevier
Publication Date
Volume
39
Issue
37
Identifiers
DOI: 10.1016/s0040-4039(98)01417-8

Abstract

Abstract A general method for the ring closure of 1-substituted 2-(-hydroxymethyl)-phenylethanols to 3-substituted isochromanes using p-TsOH supported on silica gel is reported.

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