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ES385588A1 - PROCEDURE FOR THE PREPARATION OF NEW HYDROXY-CHRONIC ACIDS. - Google Patents

PROCEDURE FOR THE PREPARATION OF NEW HYDROXY-CHRONIC ACIDS.

Info

Publication number
ES385588A1
ES385588A1 ES385588A ES385588A ES385588A1 ES 385588 A1 ES385588 A1 ES 385588A1 ES 385588 A ES385588 A ES 385588A ES 385588 A ES385588 A ES 385588A ES 385588 A1 ES385588 A1 ES 385588A1
Authority
ES
Spain
Prior art keywords
general formula
radicals
acids
procedure
preparation
Prior art date
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.)
Expired
Application number
ES385588A
Other languages
Spanish (es)
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 DE19691957750 external-priority patent/DE1957750A1/en
Priority claimed from DE19702047805 external-priority patent/DE2047805A1/en
Priority claimed from DE19702047804 external-priority patent/DE2047804A1/en
Application filed by Dr Karl Thomae GmbH filed Critical Dr Karl Thomae GmbH
Publication of ES385588A1 publication Critical patent/ES385588A1/en
Expired legal-status Critical Current

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  • 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)
ES385588A 1969-11-17 1970-11-16 PROCEDURE FOR THE PREPARATION OF NEW HYDROXY-CHRONIC ACIDS. Expired ES385588A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19691957750 DE1957750A1 (en) 1969-11-17 1969-11-17 Substd hydroxy crotonic acids
DE19702047805 DE2047805A1 (en) 1970-09-29 1970-09-29 Substd hydroxy crotonic acids
DE19702047804 DE2047804A1 (en) 1970-09-29 1970-09-29 Substd hydroxy crotonic acids

Publications (1)

Publication Number Publication Date
ES385588A1 true ES385588A1 (en) 1973-08-16

Family

ID=27182237

Family Applications (1)

Application Number Title Priority Date Filing Date
ES385588A Expired ES385588A1 (en) 1969-11-17 1970-11-16 PROCEDURE FOR THE PREPARATION OF NEW HYDROXY-CHRONIC ACIDS.

Country Status (1)

Country Link
ES (1) ES385588A1 (en)

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