Tetrahedron Letters p. 5441 - 5444 (1992)
Update date:2022-07-31
Topics:
Mehta, Anita
Jaouhari, Rabih
Benson, Timothy J.
Douglas, Kenneth T.
The use of triethylsilane as a carbocation scavenger in the presence of trifluoroacetic acid in dichloromethane leads to increased yields, decreased reaction times, simple work-up and improved selectivity for the deprotection of t-butyl ester and t-butoxycarbonyl sites in protected amino-acids and peptides in the presence of other acid-sensitive protecting groups such as the benzyloxycarbonyl, 9-fluorenylmethoxycarbonyl, O- and S-benzyl and t-butylthio groups.
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