Process for 3-exomethylenecepham sulfoxides

Details Process for 3-exomethylenecepham sulfoxides Process for 3-exomethylenecepham sulfoxides

1978-11-13

1980-02-26

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

424246, C07D50102

Patent

active

041907248

ABSTRACT:
Process for 3-exomethylenecepham sulfoxides comprising reacting a 2-chlorosulfinylazetidin-4-one ester with stannic chloride in the presence of oxo compounds, for example lower alkyl ethers and lower alkyl ketones, to form a stannic chloride complex with 2-chlorosulfinylazetidinone stabilized with said oxo compounds which, upon treatment with an hydroxy-containing compound such as methyl alcohol, decomposes providing said 3-exomethylenecepham sulfoxide.

REFERENCES:
patent: 4052387 (1977-10-01), Kukolja

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