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Title:
METHOD FOR PREPARING CYCLIC ACETAL COMPOUND
Document Type and Number:
WIPO Patent Application WO/2017/204086
Kind Code:
A1
Abstract:
Provided is a method for preparing a cyclic acetal compound represented by general formula (3) below, the method comprising a step in which compound A, represented by general formula (1) below, and compound B, represented by general formula (2) below, are subjected to a cyclodehydration reaction in a system containing an acidic catalyst, compound B, and a mixture of compound A and water, the mixture containing at least 20 mass% of water with respect to the total amount of compound A and water, wherein water contained in the mixture and water produced by the cyclodehydration reaction are removed from inside the system at the same time. (In the formulae, R1, R2, R3, and R4 each independently represent a linear or branched alkyl group having 1-6 carbon atoms, or a hydroxylmethyl group.)

Inventors:
SATO, Hideyuki (Inc. Niigata Research Laboratory, 182, Tayuhama Shinwari, Kita-ku, Niigata-sh, Niigata 12, 〒9503112, JP)
OKAMOTO, Atsushi (Inc. Niigata Research Laboratory, 182, Tayuhama Shinwari, Kita-ku, Niigata-sh, Niigata 12, 〒9503112, JP)
Application Number:
JP2017/018729
Publication Date:
November 30, 2017
Filing Date:
May 18, 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:
C07D319/06
Domestic Patent References:
2014-07-03
2014-10-23
Foreign References:
JP2016013986A2016-01-28
JPH0338585A1991-02-19
JPS59134788A1984-08-02
JPS59148776A1984-08-25
JP2007099681A2007-04-19
JP2005239599A2005-09-08
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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