ES385588A1 - Procedure for the preparation of new hydroxyrotonic acids. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of new hydroxyrotonic acids. (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boehringer Ingelheim Pharma GmbH and Co KG
Original Assignee
Dr Karl Thomae GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19691957750external-prioritypatent/DE1957750A1/en
Priority claimed from DE19702047804external-prioritypatent/DE2047804A1/en
Priority claimed from DE19702047805external-prioritypatent/DE2047805A1/en
Application filed by Dr Karl Thomae GmbHfiledCriticalDr Karl Thomae GmbH
Publication of ES385588A1publicationCriticalpatent/ES385588A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Procedure for the preparation of new hydroxycotonic acids of the general formula: **(See formula)** wherein R1-R3 signify hydrogen atoms, or one or two of the radicals R1-R3, which may be the same or different, signify lower alcohol radicals, halogen atoms, hydroxyalkyl groups, nitro, amino, acetylamino, cyano, carmaboyl optionally substituted by methyl, carboethoxy, hydrosi, methoxy, methylthio, methylsulfinyl or methylsulfonyl radicals, as well as their salts with organic or inorganic bases, characterized in that a compound of the general formula is reduced: **(See formula)** in which R1, R2 and R3 are as initially defined, in a solvent, and if desired, the compound obtained of the general formula I is then split into its two optically active antipodes and/or transformed into its salt with an organic or inorganic base. (Machine-translation by Google Translate, not legally binding)
ES385588A1969-11-171970-11-16Procedure for the preparation of new hydroxyrotonic acids. (Machine-translation by Google Translate, not legally binding)
ExpiredES385588A1
(en)
Procedure for obtaining a product to combat weeds, especially for employment in viticulture. (Machine-translation by Google Translate, not legally binding)