750624-36-3Relevant articles and documents
A hierarchy of aryloxide deprotection by boron tribromide
Punna, Sreenivas,Meunier, Stephane,Finn
, p. 2777 - 2779 (2004)
Aryl propargyl ethers and esters are cleaved selectively in the presence of aryl methyl ethers and esters by boron tribromide in dichloromethane. Under the same conditions, allyl ethers undergo very rapid Claisen rearrangement, and benzyl ethers are also cleaved more rapidly than propargyl. A mechanism involving intramolecular delivery of bromide to the propargyl terminus is proposed.