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Synlett 1998; 1998(6): 611-612
DOI: 10.1055/s-1998-1726
DOI: 10.1055/s-1998-1726
letter
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N,N-Dibenzyloxycarbonylglycyl Chloride as Useful Ketene Equivalent in the Synthesis of Azetidin-2-ones
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Publikationsverlauf
Publikationsdatum:
31. Dezember 2000 (online)
N,N-3-Dibenzyloxycarbonylaminoazetidin-2-ones have been conveniently prepared from N,N-dibenzyloxycarbonylglycyl chloride and imines or hexahydrotriazines. The β-lactams thus obtained could be monodeprotected by mild hydrogenolysis with Pd on carbon.
glycyl chloride - 3-amino-azetidin-2-ones - (2S)-lactal - hexahydrotriazines - β-lactams