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Patents Represented by Attorney Annette M. Tobia

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Process for preparing 4,4-dialkyl-2-azetidinones utilizing a pyridine (or substituted pyridine) sulfur trioxide complex

Patent number: 4812564

Abstract: Disclosed herein is a process for preparing a compound having the formula ##STR1## which comprises sulfonating a compound having the formula ##STR2## with a complex having the formula ##STR3## and cyclizing the resulting compound having the formula ##STR4## by treatment with a base.

Type: Grant

Filed: May 11, 1987

Date of Patent: March 14, 1989

Assignee: E. R. Squibb & Sons, Inc.

Inventors: William A. Slusarchyk, Tamara Dejneka