Title:
【発明の名称】スピロケタール化合物の製造方法
Document Type and Number:
Japanese Patent JP3157831
Kind Code:
B2
Abstract:
A process for the production of ambergris-type labdane spiroketals of general formulae I and II I and/or II where R represents oxygen or sulphur, useful in the perfumery industry, the said process being characterized by the intramolecular cyclisation of the epoxyketone or its thio analog of general formula III III where R1 represents COCH3 and R2 oxygen or sulphur.
Inventors:
Doseu Goncalves Da Costa, Maria
De Oliveira Baptista Marcelo Kurt, Maria Joao Vidal
De Louleiro da Silva Tavares Darosa, Maria Regina
Mosselwell, William Blanks
De Oliveira Baptista Marcelo Kurt, Maria Joao Vidal
De Louleiro da Silva Tavares Darosa, Maria Regina
Mosselwell, William Blanks
Application Number:
JP50257993A
Publication Date:
April 16, 2001
Filing Date:
July 15, 1992
Export Citation:
Assignee:
Givaudan-Rule (Alternacional) Society Anonymous
International Classes:
B01J21/04; B01J21/08; B01J21/16; B01J29/00; C07B61/00; C07C45/28; C07C45/29; C07C49/21; C07D301/14; C07D303/22; C07D303/32; C07D331/02; C07D493/08; C07D493/10; C07D495/08; C07D497/10; C11B9/00; (IPC1-7): C07D493/08; C11B9/00
Attorney, Agent or Firm:
Akira Asamura (3 outside)