Tetrahedron Letters

Reaction of aryl-2-hydroxypropenoic derivatives with boron tribromide

R Dupont, P Cotelle

Index: Tetrahedron Letters, , vol. 42, # 4 p. 597 - 600

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Citation Number: 11

Abstract

... Tetrahedron Letters. Volume 42, Issue 4, 22 January 2001, Pages 597–600. Cover image Cover image. ... Compound 5 gave a mixture of cis (20%) and trans (35%) 3,4-dihydro-3,4- dihydroxycoumarins and 3-hydroxycoumarin (45%) in 93% yield. ...

~15%

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