Title:
【発明の名称】4‐(3,3‐エチレンジオキソ‐シクロヘキシル)アセトフェノンおよびその誘導体、それらの製法およびこれらの化合物の用途
Document Type and Number:
Japanese Patent JPH03502096
Kind Code:
A
Abstract:
PCT No. PCT/CH89/00036 Sec. 371 Date Nov. 20, 1989 Sec. 102(e) Date Nov. 20, 1989 PCT Filed Feb. 24, 1989 PCT Pub. No. WO89/09215 PCT Pub. Date Oct. 5, 1989.The invention is concerned with the preparation of 2-[4-(3-oxo- cyclohexyl)phenyl] propionic acid and of its derivatives. This preparation consists in transforming 4-(3,3-ethylenedioxo- cyclohexyl) acetophenone or its derivatives of the general formula: (IV) in which A1 represents a group and B represents a group and R1, R2, R3, R4, R5, which can be identical or different, represent each a hydrogen or an alkyl group into the desired compound of the general formula: (I) in which A4 represents a group This method offers the advantage of being easier to implement on an industrial scale and of having a better yield than the methods of preparation of the compounds of formula (I) according to prior art.
Inventors:
Heidel, Akhtar
Application Number:
JP50208389A
Publication Date:
May 16, 1991
Filing Date:
February 24, 1989
Export Citation:
Assignee:
Socina, Societe, Simiku, Doe, Bionah, Societe, Anonym
International Classes:
C07C45/46; C07C45/59; C07C45/62; C07C45/63; C07C45/64; C07C49/697; C07C49/747; C07C49/792; C07C49/794; C07C49/798; C07C59/86; C07C255/40; C07D317/72; (IPC1-7): C07C49/792; C07C49/798; C07C255/40; C07D317/72
Attorney, Agent or Firm:
Kazuo Sato (2 outside)