Claims
- 1. The process which comprises reacting 2-R-6-PY-3(2H)-pyridazinone with hydrazine to produce 4-amino-2-R-6-PY-3(2H)-pyridazinone, where PY is 4- or 3-pyridinyl or 4- or 3-pyridinyl having one or two lower-alkyl substituents, and, R is hydrogen, lower-alkyl or lower-hydroxyalkyl.
- 2. The process according to claim 1 where PY is 4-pyridinyl or 3-pyridinyl.
- 3. Th process according to claim 1 where R is hydrogen, methyl, ethyl or 2-hydroxyethyl.
Parent Case Info
This is a division of application Ser. No. 144,563, filed Apr. 28, 1980, now U.S. Pat. No. 144,563.
Non-Patent Literature Citations (2)
Entry |
Glushkov et al., Chem. Abs. 79, 125894g (1973). |
Cheeseman et al., Chem Abs. 74, 112014s (1971). |
Divisions (1)
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Number |
Date |
Country |
Parent |
144563 |
Apr 1980 |
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