公开(公告)号：US20090275756A1

公开(公告)日：2009-11-05

申请号：US12301605

申请日：2007-05-17

Applicant: Yasuo Urata ,  Shunji Oshima ,  Ryousuke Nishibata ,  Keiichi Kodaki ,  Hiroyuki Takeuchi ,  Shuichi Matsui

Inventor： Yasuo Urata ,  Shunji Oshima ,  Ryousuke Nishibata ,  Keiichi Kodaki ,  Hiroyuki Takeuchi ,  Shuichi Matsui

IPC: C07D305/12 ,  C07D407/08 ,  C07D405/10

CPC classification number: C07D305/12 ,  C07D405/10 ,  C07D407/08

Abstract: An aldehyde derivative represented by the general formula (2) is reacted with ketene in the presence of a Lewis acid catalyst to produce a novel 2-oxetanone derivative (1), which is then purified to a 2-oxetanone derivative having a high trans-isomer purity, and then converted to a vinyl derivative (3) through decarboxylation reaction.

Abstract translation: 通式（2）表示的醛衍生物与路易斯酸催化剂存在下的乙烯酮反应生成新的2-氧杂环丁酮衍生物（1），然后将其纯化成具有高反式 - 异构体纯度，然后通过脱羧反应转化为乙烯基衍生物（3）。

公开(公告)号：US07999123B2

公开(公告)日：2011-08-16

申请号：US12301605

申请日：2007-05-17

Applicant: Yasuo Urata ,  Shunji Oshima ,  Ryousuke Nishibata ,  Keiichi Kodaki ,  Hiroyuki Takeuchi ,  Shuichi Matsui

Inventor： Yasuo Urata ,  Shunji Oshima ,  Ryousuke Nishibata ,  Keiichi Kodaki ,  Hiroyuki Takeuchi ,  Shuichi Matsui

IPC: C07D305/12

CPC classification number: C07D305/12 ,  C07D405/10 ,  C07D407/08

Abstract: An aldehyde derivative represented by the general formula (2) is reacted with ketene in the presence of a Lewis acid catalyst to produce a novel 2-oxetanone derivative (1), which is then purified to a 2-oxetanone derivative having a high trans-isomer purity, and then converted to a vinyl derivative (3) through decarboxylation reaction.

Abstract translation: 通式（2）表示的醛衍生物与路易斯酸催化剂存在下的乙烯酮反应生成新的2-氧杂环丁酮衍生物（1），然后将其纯化成具有高反式 - 异构体纯度，然后通过脱羧反应转化为乙烯基衍生物（3）。