Title:
PRODUCTION OF N-ALKOXYMETHYL(METH)ACRYLAMIDE
Document Type and Number:
Japanese Patent JP3945833
Kind Code:
B2
Abstract:
PURPOSE: To obtain the subject compound with low polymer content, useful for e.g. resin modification, by reaction of N-methylol (meth)acrylamide with an alcohol in the presence of an acid catalyst under aeration to adjust the pH level of the reaction system followed by concentration at reduced pressures.
CONSTITUTION: (A) An N-methylol (meth)acrylamide of formula CH2=C(R1) CONHCH2OH (R1 is H or methyl) or a reaction liquor containing the same is reacted with (B) an alcohol of formula R2OH (R2 is a 1-3C lower alkyl) in the presence of an acid catalyst under aeration to adjust the pH level of the reaction liquor to ≥5 but <8 followed by concentration under reduced pressure under aeration, thus affording (C) the objective N-alkoxymethyl (meth)acrylamide of formula CH2=C(R1)CONHCH2OR2. Preferably the pH level of the reaction liquor before pH adjustment is 2-5.
Inventors:
Hiroshi Yamashita
Toshimori Tano
Ryo Suzuki
Otsuka Kazo
Toshimori Tano
Ryo Suzuki
Otsuka Kazo
Application Number:
JP33545194A
Publication Date:
July 18, 2007
Filing Date:
December 22, 1994
Export Citation:
Assignee:
Mitsubishi Rayon Co., Ltd.
International Classes:
C07C231/12; C07B61/00; C07C231/24; C07C233/20; (IPC1-7): C07C233/20; C07C231/12; //C07B61/00
Domestic Patent References:
| JP539251A | ||||
| JP3823607B1 | ||||
| JP7138216A |
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