HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrazine hydrate (1:1) → HCID 12582638, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | Phenylmethyl 3-chloro-7,8-dihydropyrido[4,3-c]pyridazine-6(5H)-carboxylate | HCID 54479689 | — |
| Product | HCID 12582638 | HCID 12582638 | — |
Reaction Steps
19.2 g of crude oily 3-chloro-5,6,7,8-tetrahydro-6-pyrido[4,3-c]pyridazinecarboxylic acid benzyl ester and 100 cc of hydrazine hydrate are stirred at a bath temperature of 70° for 71/2 hours, and the mixture is worked up to the crude title compound in a manner analogous to that described in Example 37, and this compound is recrystallized from acetonitrile. M.P. 135°-137° (decomp.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03954754 |
| Source dataset | uspto-grants-1976_05 |
| ORD ID | ord-5cf5af1a5e6e4846bdce72d8f2c46fec |
| Source note | uspto-grants-1976_05 |