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Patent Searching and Data


Title:
PREPARATION OF 2-OXAZOLINE DERIVATIVE
Document Type and Number:
Japanese Patent JPH03197469
Kind Code:
A
Abstract:

PURPOSE: To highly simply, profitably prepare the subject compound useful as a raw material for drugs, agricultural chemicals, functional materials, etc., in a high yield without employing an expensive asymmetrical source, etc., by reacting an epoxide with a nitrile compound as raw materials in the presence of an acid.

CONSTITUTION: An epoxide compound of formula I (R1 and R2 are H, 1-16C alkyl, phenyl or benzyl) is made to react with a nitrile compound in the presence of an acid catalyst such as hydrogen fluoride at -20°C to 70°C, especially 0°C to 30°C, to prepare a compound of formula II (R3 is 1-10C alkyl, phenyl or benzyl). The epoxide compound of formula I includes 1,2-epoxypropane and styrene oxide. The epoxide compound having optical activity is prepared by oxidizing an olefin with microorganisms. The nitrile compound includes acetonitrile and preferably employed in a ratio of 5-10 moles per of the epoxide compound.


Inventors:
UMEZAWA JUNKO
TAKAHASHI OSAMU
FURUHASHI KEIZO
Application Number:
JP2729190A
Publication Date:
August 28, 1991
Filing Date:
February 08, 1990
Export Citation:
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Assignee:
NIPPON MINING CO
International Classes:
C07D263/10; B01J27/12; B01J27/125; B01J27/135; B01J31/02; B01J31/12; C07B61/00; (IPC1-7): B01J27/12; B01J27/125; B01J27/135; B01J31/02; B01J31/12; C07B61/00; C07D263/10
Attorney, Agent or Firm:
Hiroshi Namikawa