
Chemistry Letters p. 333 - 336 (1982)
Update date:2022-07-30
Topics:
Wakselman, Michel
Zrihen, Maryse
At -30 deg C BBr3 is a milder reagent than Me3SiI and Me3SiCl + NaI for the cleavage of methyl or tert-butyl esters and benzyl ether group of the title β-lactams without destroying the azetidinone ring.
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