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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2243930Generated: October 25, 2026

Hydrazine hydrate (1:1) → 3-(2-Methylphenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[c]pyridazine

https://huagongshe.com/reaction/2243930

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant1,2-CycloheptanedioneHCID 76365—
ReactantDimethyl 2-o-methylphenyl-2-oxoethylphosphonateHCID 14302186—
Product3-(2-Methylphenyl)-6,7,8,9-tetrahydro-5H-cyclohepta[c]pyridazineHCID 16063704—

Reaction Steps

light yellow solid. MS (EI): 238.2 (M+). Prepared from cycloheptane-1,2-dione, (2-Oxo-2-o-tolyl-ethyl)-phosphonic acid dimethyl ester, hydrazine monohydrate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07678795B2
Source datasetuspto-grants-2010_03
ORD IDord-2eedc4efd0d74f959c8890c75d1a6a7e
Source noteuspto-grants-2010_03