Title:
PROCESS FOR PREPARING 3-ISOCHROMANONE
Document Type and Number:
Japanese Patent JP2010180246
Kind Code:
A
Abstract:
To provide a chemical process and more particularly to provide a process for preparing 3-isochromanone which is useful in the production of certain agricultural products.
The process for preparing 3-isochromanone includes bringing an o-xylene-α, α'-dihalide into contact with carbon monoxide in the presence of a catalyst and a hindered amine base in a liquid medium comprising water and a tertiary alcohol. In one embodiment, o-xylene-α, α'-dihalide is o-xylene-α, α'-dichloride.
Inventors:
JONES RAYMOND VINCENT HEAVON
WHITTON ALAN JOHN
WHITE JENNIFER ANN
RITCHIE DAVID JOHN
FIELDHOUSE ROBIN
MACCORMICK KIRSTIN
NISBET LOGAN THOMSON
EVANS PAUL RICHARD
BENNIE COLIN JOHN
WHITTON ALAN JOHN
WHITE JENNIFER ANN
RITCHIE DAVID JOHN
FIELDHOUSE ROBIN
MACCORMICK KIRSTIN
NISBET LOGAN THOMSON
EVANS PAUL RICHARD
BENNIE COLIN JOHN
Application Number:
JP2010110670A
Publication Date:
August 19, 2010
Filing Date:
May 12, 2010
Export Citation:
Assignee:
SYNGENTA LTD
International Classes:
C07D311/76; C07B61/00
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita
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