Otsuka Kagaku Yakuhin Kabushiki Kaisha

Kuraray Co., Ltd.

Central Glass Company, Limited

Kenji Uneyama

Sigeru Torii

Hideo Tanaka

Takashi Shiroi

Norio Saito

Junzo Nokami

Michio Sasaoka

Takashi Nishida

Yoshiji Fujita

Takashi Onishi

Michihiro Ishiguro

Hideki Amii

Process for producing octafluoro&lsqb;2,2&rsqb;paracyclophane

This invention provides azetidinone derivatives represented by the formula ##STR1## and processes for preparing the same. The azetidinone derivatives are used as the intermediates for producing cephalosporin compounds useful as antibiotic agents.

Process for the preparation of cephem derivatives

Azetidinone derivatives and process for the preparation of the same

4-thio azetidinone intermediates and process for the preparation of the

This invention relates to novel thiazolineazetidinone-type compounds represented by the formula ##STR1## wherein R represents a hydrogen atom, alkyl group, alkyl group replaced with halogen atoms, methyl group replaced with substituted or unsubstituted phenyl groups, methyl replaced with halogen atoms, or trialkylsilyl group and Z represents O or Cl.sub.2.

Thiazolineazetidinone-type compounds

Novel cyclohexanone derivatives of general formula: ##STR1## (wherein R.sup.1 is a hydrocarbon group of 1 to 15 carbon atoms) and new cyclohexanone derivatives of general formula: ##STR2## (wherein R.sup.1 and R.sup.2 each is a hydrocarbon group of 1 to 15 carbon atoms) are produced by an electrooxidative coupling of 1,3-cyclohexanedione with a vinyl ether of general formula:

1,3-Cyclohexanedione derivatives

Growing community of inventors

Okayama, Japan

Kenji Uneyama