公开(公告)号：US20150126766A1

公开(公告)日：2015-05-07

申请号：US14516979

申请日：2014-10-17

Applicant: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.

Inventor： Yukio Tanaka ,  Kohei Okamura ,  Toyoyuki Sugiura ,  Keisuke Ito ,  Naohiko Kawakami ,  Shigeaki Matsumoto ,  Masayoshi Matsuno

IPC: C07C67/40

CPC classification number: C07C67/40 ,  C07C67/03 ,  C07C69/54

Abstract: A process for preparing 4-hydroxybutyl acrylate by transesterifying an alkyl acrylate with 1,4-butanediol in the presence of a dialkyltin oxide such that each of the alkyl groups has 4 to 8 carbon atoms, characterized in that the amount of the dialkyltin oxide is adjusted to 0.00001 to 0.01 moles per one mole of the alkyl acrylate.

Abstract translation: 一种通过在二烷基锡氧化物的存在下，用丙烯酸烷基酯与1,4-丁二醇进行酯交换使得每个烷基具有4至8个碳原子来制备丙烯酸4-羟基丁酯的方法，其特征在于二烷基氧化锡的量为 相对于每摩尔丙烯酸烷基酯调整为0.00001〜0.01摩尔。

公开(公告)号：US09670129B2

公开(公告)日：2017-06-06

申请号：US14516979

申请日：2014-10-17

Applicant: OSAKA ORGANIC CHEMICAL INDUSTRY LTD.

Inventor： Yukio Tanaka ,  Kohei Okamura ,  Keisuke Ito

IPC: C07C67/40 ,  C07C67/03

CPC classification number: C07C67/40 ,  C07C67/03 ,  C07C69/54

Abstract: A process for preparing 4-hydroxybutyl acrylate by transesterifying an alkyl acrylate with 1,4-butanediol in the presence of a dialkyltin oxide such that each of the alkyl groups has 4 to 8 carbon atoms, characterized in that the amount of the dialkyltin oxide is adjusted to 0.00001 to 0.01 moles per one mole of the alkyl acrylate.