Results for éthoxyméthylène translation from French to English

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éthoxyméthylène

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exemple 2 a - préparation du 4-hydroxy-5.7-dichloroquinoléïne-3-carboxylate d'éthyle : a partir de 33,5 g (0,155 mole) d'éthoxyméthylène malonate d'éthyle , 24,3 g (0,15 mol) de 3,5-dichloroaniline et 263 g de therminol vp1 , on prépare comme décrit dans l'exemple 1, la suspension de 4-hydroxy-5,7-dichloro- quinoléïne 3-carboxylate d'éthyle. b - hydrolyse - décarboxylation du 4-hvdroxy-5,7-dichloroquinoléïne-3- carboxylate d'éthyle obtenu : on baisse la température du mélange réactionnel obtenu ci-dessus à 240°c. on injecte, au moyen d'un tube plongeant dans le mélange réactionnel, 10,4 g (0,58 mol) d'eau en continu pendant 3 heures .

English

example 2 [0052] (a) preparation of ethyl 4-hydroxy-5,7-dichloroquinoline-3-carboxylate: [0053] a suspension of ethyl 4-hydroxyy-5,7-dichloroquinoline-3-carboxylate was prepared from 33.5 g (0.155 mole) of ethyl ethoxymethylene malonate, 24.3 g (0.15 mole) of 3,5-dichloroaniline and 263 g of therminol vpi as described in example 1. [0054] (b) hydrolysis/decarboxylation of the ethyl 4-hydroxy-5,7-dichloroquinoline-3-carboxylate thus formed: [0055] the temperature of the reaction mixture obtained in step (a) was reduced to 240° c. [0056] 10.4 g (0.58 mol) of water was continuously injected therein over 3 hours by means of a tube immersed in the reaction mixture.

Last Update: 2014-12-03
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