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URBANIZACIONES Y CONSTRUC DE M
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URBANIZACIONES Y CONSTRUC DE M
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Application filed by URBANIZACIONES Y CONSTRUC DE MfiledCriticalURBANIZACIONES Y CONSTRUC DE M
Priority to ES522384ApriorityCriticalpatent/ES522384A0/en
Publication of ES8406475A3publicationCriticalpatent/ES8406475A3/en
Publication of ES522384A0publicationCriticalpatent/ES522384A0/en
Deriv. of the methyl ester of 14,15-dihydro 14-beta-hydroxy (3 alpha, 16 alpha) eburnamenine 14-carboxylic acid, of formula (I) is made by reacting 14,15-dihydro 14 beta-hydroxy (3 alpha, 16 alpha) eburnamenine 14-carboxylic acid with diazoethane in a non-polar solvent such as ether, a hydrocarbon or halogenated hydrocarbon at around 0 deg.C..
ES522384A1983-05-131983-05-13
PROCEDURE FOR THE PREPARATION OF A DERIVATIVE OF 14,15-DIHIDRO-14B-HIDROXI- (3 &, 16 &) - EBURNAMENINA-14-METHYL CARBOXYLATE.
GrantedES522384A0
(en)
New derivatives of 2,2-dimethyl cyclopropane carboxylic acid having a saturated halogenated chain in position 3, the process and the intermediates for their preparation, their use as pesticides and the compositions containing them