Selective Deprotection of Ethers by Low-Valent Titanium: Facile Cleavage of Propargyl Ethers

1 January 1993

journal article
letter
Published by Georg Thieme Verlag KG in Synlett

Vol. 1993 (08) , 581-582
https://doi.org/10.1055/s-1993-22537

Abstract

Selective deprotection of propargyl ethers of alcohols and phenols (12 examples) in the presence of allyl, benzyl and methyl ethers by low-valent titanium (TiCl₃-Mg-THF) is reported. Ease of cleavage is in the order propargyl > allyl > benzyl.

Keywords

DEPROTECTION
ETHERS
PROPARGYL
CLEAVAGE
TITANIUM
VALENT
ALCOHOLS
TICL
PHENOLS
EASE

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