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Silver Salt Photography Or Processing Solution Therefor
(AREA)
Abstract
CONVERSION OF 2-PYRAZOUNTS TO PYRA-ZOLES USMIG BROMINE THIS INVENTION RELATES TO A METHOD FOR PREPARING A COMPOUND OF FORMULA I S WHEREIN L, RI, R' AND X ARE AS DEFINED IN THE DISCLOSURE, COMPRISING CONTACTING A 2-PYRAZOLINE OF FORMULA 2 WITH BROMINE AT A TEMPERATURE OF AT LEAST ABOUT 80 'C- X RI H IX ZN R N N H N L 1 2 THIS INVENTION ALSO DISCLOSES PIEPARATION OF A COMPOUND OF FORMULA 3 WHEREIN JO X, Z' R5, R6, R7, OA, R8B AND N ARE AS DEFINED IN THE DISCLOSURE, USING A COMPOUND OF FOI-MULA LA WHEREIN RIO IS AS DEFINED IN THE DISCLOSURE, PREPARED BY DIE AFORESAID METHOD FOR PREPARING- A COMPOUND OF FORMULA 1. X N R6 N (D NE 3 N Z (R), R 0 3 R 7 0 (R5 6 4 RH' N@' RSB 5 3 LA 1 5
MYPI200636372006-07-282006-07-28Conversion of 2-pyrazolines to pyrazoles using bromine
MY145132A
(en)
Process for preparing 5-((r) -2-(5, 6-diethyl -indian-2 -ylamino)-1- hydroxy- ethyl)-8 -hydroxy- (1h)-quinolin -2-one salt, useful as an adrenoceptor agonist.