Allylic chlorination process and compounds prepared thereby

Details Allylic chlorination process and compounds prepared thereby Allylic chlorination process and compounds prepared thereby

1983-11-14

1985-05-21

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D20508, C07D51314, C07B 900

Patent

active

045185310

ABSTRACT:
This invention provides a novel allylic chlorination process for inserting a chlorine atom on the saturated methyl group of a 3-methyl-2-but-3-enoate group on the ring nitrogen atom of a 2-azetidinone or thiazolinoazetidinone. The chloro-substituted compounds prepared thereby are novel intermediates used in preparation of cephalosporins.

REFERENCES:
patent: 4079181 (1978-03-01), Tsuji et al.
Uveo et al., Heterocycles 10, 99-104, (1978).

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