63856-23-5Relevant articles and documents
Process for the preparation of 1,3-disubstituted-2-azetidinones from triazines
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, (2008/06/13)
A process for preparing an azetidinone of the formula: STR1 which comprises reacting a C-unsubstituted methyleneamine of the formula: STR2 with R2 --CH2 COOH, its acid halide or anhydride, in the presence of boron trihalide and an organic base, wherein R1 is an organic residue bearing a carboxy group or its derivative and R2 is azido, substituted amino, halogen, acyloxy, alkoxy, aryloxy or aralkoxy.