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Application filed by Ioan Batiu, Dorin Breazu, Ludovic Fey, Dorina Leuca, Florica Elena VlaicufiledCriticalIoan Batiu
Priority to RO102848ApriorityCriticalpatent/RO81266B1/ro
Publication of RO81266A2publicationCriticalpatent/RO81266A2/ro
Publication of RO81266B1publicationCriticalpatent/RO81266B1/ro
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Inventia se refera la un procedeu pentru prepararea 2,6-diclor-4-nitroanilinei prin clorurarea cu clor gazos ap-nitroanilinei, în solutie apoasa de acid clorhidric, la fierbere si anume reactia se realizeaza la o concentratia a acidului clorhidric de 4....7,5 N, de preferinta 4,5....6 N si la o temperatura cuprinsa între 95 si 110 degree C, de preferinta 105...110 degree C, eventual cu o suprapresiune pîna la 3 bari.
RO102848A1980-12-161980-12-16Procedeu de preparare a unor derivati ai esterului malonic mono si -disubstituit
RO81266B1
(ro)