ES237898A2 - Procedure for the preparation of phosphoric steres of substitute umbeliferones (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of phosphoric steres of substitute umbeliferones (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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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
Application filed by Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpAfiledCriticalMontedison SpA
Priority to ES0237898ApriorityCriticalpatent/ES237898A2/en
Publication of ES237898A2publicationCriticalpatent/ES237898A2/en
Improvements in the object of the main patent No. 228,166, by "Process for the preparation of phosphoric esters of substituted umbelliferones", of general formula ** (See formula) ** (in which R is a low molecular weight alkyl radical (eg methyl, ethyl, isopropyl), Z oxygen or sulfur, and X a bivalent radical that can be represented alternatively by a) a bivalent radical derived from a straight or branched chain hydrocarbon forming a hexaatomic ring with the carbon atoms in position 3 and 4, b) a residue of an unsaturated hydrocarbon that forms a hexaatomic ring with the carbon atoms in position 3 and 4, c) a chain of 4 terms consisting of methylenic groups linked to a heteroatom) which consists in reacting a halide of a 0.0-dialkylphosphoric or thiophosphoric acid of the general formula ** (See formula) ** (wherein R is a low molecular weight alkyl radical, Y a halogen atom, and Z sulfur or oxygen) with a heterocyclic phenolic compound of general formula ** (See formula) ** wherein X has the above-mentioned meaning and M represents an alkali metal atom. (Machine-translation by Google Translate, not legally binding)
ES0237898A1957-11-021957-11-02Procedure for the preparation of phosphoric steres of substitute umbeliferones (Machine-translation by Google Translate, not legally binding)
ExpiredES237898A2
(en)
A procedure for the obtaining of phosphoric esters applicable for the preparation of parasiticide compositions (Machine-translation by Google Translate, not legally binding)