| abstract |
A PROCEDURE FOR THE PREPARATION OF N-ARIL-3-ARIL-4,5-DIHIDRO-1H-PIRAZOL-1-CARBOXAMIDAS DE FORMULA (I). IT CONSISTS OF DISSOLVING A COMPOUND OF FORMULA (II) WITH AN APROTIC SOLVENT, TREATING THE SOLUTION WITH A STRONG BASE, WHICH MAY BE LITHIUM DIISOPROPYLAMIDIDE OR BUTYL-LITHIUM AND SUBSEQUENTLY WITH AN ALKYLATING AGENT OR A COMPULATING III . THE RENTAL OR ACILATION REACTION IS CARRIED OUT AT A TEMPERATURE BETWEEN C120JC AND 200JC FOR A PERIOD OF 1 SG TO APPROXIMATELY 48 HOURS. APPLIED IN THE OBTAINING OF PESTICIDES. |