Method for the regioselective synthesis of 1-alkyl-3-haloalkyl pyroazole-4-carboxylic acid derivatives
Номер патента: EP2247577A2
Опубликовано: 10-11-2010
Автор(ы): Jens-Dietmar Heinrich, Norbert Lui, Sergii Pazenok, Thomas Wollner
Принадлежит: Bayer CropScience AG
Опубликовано: 10-11-2010
Автор(ы): Jens-Dietmar Heinrich, Norbert Lui, Sergii Pazenok, Thomas Wollner
Принадлежит: Bayer CropScience AG
Реферат: The present invention relates to a regioselective synthesis of 1-alkyl-3-haloalkyl-pyrazole-4-carboxylic acid derivatives by the cychzation of 2,3-disubstituted acrylic acid derivatives, and the hydrazones created as a by-product in the method.
Method for the regioselective synthesis of 1-alkyl-3-haloalkyl-pyroazole-4-carboxylic acid derivatives
Номер патента: CN102026981B. Автор: 谢尔盖·帕泽诺克,诺贝特·吕,延斯-迪特马尔·海因里希,托马斯·沃尔纳. Владелец: Bayer CropScience AG. Дата публикации: 2014-10-29.