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ChemicalBook CAS DataBase List Chloridazon
1698-60-8

Chloridazon synthesis

4synthesis methods
-

Yield:-

Steps:

3 EXAMPLE 3
EXAMPLE 3 Example 2 was repeated, using 1-phenol-4-sulphonic acid (4.4 g) instead of 4-hydroxy-benzoic acid. 9.6 g of 4-chloro-5-amino-2-phenyl-3(2H)-pyridazinone were obtained while 0.8 g remained dissolved in the mother liquor and washings. In all, 10.4 g (94%) of 4-chloro-5-amino-2-phenyl-3-(2H)-pyridazinone were thus formed.

References:

BASF Aktiengesellschaft US4454318, 1984, A

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