公开(公告)号：US09447017B2

公开(公告)日：2016-09-20

申请号：US14401868

申请日：2013-06-05

Applicant: DSM IP ASSETS B.V.

Inventor： Werner Bonrath ,  Jan Schütz ,  Bettina Wüstenberg ,  Thomas Netscher

IPC: C07D311/00 ,  C07C69/66 ,  C07C67/29 ,  C07C29/15 ,  C07C45/00 ,  C07D311/72

CPC classification number: C07C67/29 ,  C07C29/15 ,  C07C45/008 ,  C07D311/72 ,  C07C69/14

Abstract: The present invention relates to an improved process for the production of 4-alkanoyloxy-2-methylbutanoic acid, as well as to the use of such compounds in organic syntheses, especially in processes forming intermediates (building blocks) for the synthesis of organic compounds comprising isoprene (isoterpene) units, such as β-carotene or other carotenoids (e.g. canthaxanthin, zeaxanthin or astaxanthin) or as vitamin E or vitamin A as well as other structurally similar compounds.

Abstract translation: 本发明涉及一种生产4-烷酰氧基-2-甲基丁酸的改进方法，以及这些化合物在有机合成中的用途，特别是在形成用于合成有机化合物的中间体（构成单元）的方法中的用途，所述方法包括 异戊二烯（异萜烯）单元，例如β-胡萝卜素或其他类胡萝卜素（例如角黄素，玉米黄质或虾青素）或维生素E或维生素A以及其它结构相似的化合物。

公开(公告)号：US20150099894A1

公开(公告)日：2015-04-09

申请号：US14401868

申请日：2013-06-05

Applicant: DSM IP ASSETS B.V.

Inventor： Werner Bonrath ,  Jan Schütz ,  Bettina Wüstenberg ,  Thomas Netscher

IPC: C07C67/29 ,  C07C29/15 ,  C07C45/00 ,  C07D311/72

CPC classification number: C07C67/29 ,  C07C29/15 ,  C07C45/008 ,  C07D311/72 ,  C07C69/14

Abstract: The present invention relates to an improved process for the production of 4-alkanoyloxy-2-methylbutanoic acid, as well as to the use of such compounds in organic syntheses, especially in processes forming intermediates (building blocks) for the synthesis of organic compounds comprising isoprene (isoterpene) units, such as β-carotene or other carotenoids (e.g. canthaxanthin, zeaxanthin or astaxanthin) or as vitamin E or vitamin A as well as other structurally similar compounds.

Abstract translation: 本发明涉及一种生产4-烷酰氧基-2-甲基丁酸的改进方法，以及这些化合物在有机合成中的用途，特别是在形成用于合成有机化合物的中间体（构成单元）的方法中的用途，所述方法包括 异戊二烯（异萜烯）单元，例如胡萝卜素或其他类胡萝卜素（例如角黄素，玉米黄质或虾青素）或维生素E或维生素A以及其它结构类似的化合物。