Chemistry: electrical and wave energy – Processes and products – Processes of treating materials by wave energy
Patent
1989-06-21
1990-07-10
Niebling, John F.
Chemistry: electrical and wave energy
Processes and products
Processes of treating materials by wave energy
20415793, 540357, 540200, B01J 1908, C07D20502, C07D20506
Patent
active
049405209
ABSTRACT:
The 4-acyloxyazetidin-2-ones, which are intermediates in the production of carbapenems and penems, are produced from 4-furanylazetidin-2-ones by singlet oxygen oxidation.
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Laswell William L.
Lynch Joseph E.
Shinkai Ichiro
Volante Ralph P.
Harbour J. W.
Hsing Ben C.
Merck & Co. , Inc.
Niebling John F.
Pfeiffer H. J.
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