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Title:
METHOD FOR PRODUCING DIOL HAVING CYCLIC ACETAL SKELETON
Document Type and Number:
WIPO Patent Application WO/2017/159525
Kind Code:
A1
Abstract:
This method for producing a diol having a cyclic acetal skeleton comprises an acetalation reaction step for carrying out an acetalation reaction, in the presence of an acid catalyst, between a starting hydroxypivalaldehyde and at least pentaerythritol and/or trimethylolpropane to obtain a diol having a cyclic acetal skeleton. The starting hydroxypivalaldehyde can contain a prescribed amount of at least one impurity selected from the group consisting of formaldehyde, neopentyl glycol, an ester compound having a neopentyl glycol skeleton and given by formula (III), and isobutyl aldehyde.

Inventors:
YAMANE, Masahiro (Inc. Mizushima Plant, 3-10, Mizushima Kaigandori, Kurashiki-sh, Okayama 25, 〒7128525, JP)
Application Number:
JP2017/009403
Publication Date:
September 21, 2017
Filing Date:
March 09, 2017
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC. (5-2 Marunouchi 2-chome, Chiyoda-ku Tokyo, 24, 〒1008324, JP)
International Classes:
C07D493/10; C07D319/06
Domestic Patent References:
WO2012118196A12012-09-07
Foreign References:
JP2001302674A2001-10-31
JPS59134788A1984-08-02
JP2001302673A2001-10-31
JP2005029563A2005-02-03
JP2007126448A2007-05-24
JP2011074000A2011-04-14
JP2007070339A2007-03-22
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (TMI ASSOCIATES, 23rd Floor Roppongi Hills Mori Tower, 6-10-1, Roppongi, Minato-k, Tokyo 23, 〒1066123, JP)
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