Method for producing pyrazolinone compounds

Details Method for producing pyrazolinone compounds Method for producing pyrazolinone compounds

1998-05-13

1999-02-09

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23152

Patent

active

058696849

ABSTRACT:
A method for producing a pyrazolinone compound represented by the formula (I): ##STR1## (wherein, R.sup.1 is a hydrocarbyl group which may be substituted, R.sup.2 is a hydrocarbyl group which may be substituted and Ar is a phenyl group which may be substituted) which comprises reacting a lithium salt of a pyrazolinone compound represented by the formula (II): ##STR2## (wherein, R.sup.1 and Ar have the same meanings as described above) is reacted with a sulfonic acid ester represented by the formula (III):

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