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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1985606Generated: October 29, 2026

Hydrazine hydrate (1:1) → 3-tert-Butyl-6,6-dimethyl-6,7-dihydro-5H-cyclopenta[c]pyridazine

https://huagongshe.com/reaction/1985606

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant4,4-Dimethylcyclopentane-1,2-dioneHCID 14289654—
ReactantDimethyl (3,3-dimethyl-2-oxobutyl)phosphonateHCID 14302170—
Product3-tert-Butyl-6,6-dimethyl-6,7-dihydro-5H-cyclopenta[c]pyridazineHCID 24772663—

Reaction Steps

white crystalline solid. MS (ESI): 205.0 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, (3,3-dimethyl-2-oxo-butyl)-phosphonic acid dimethyl ester, hydrazine monohydrate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07547697B2
Source datasetuspto-grants-2009_06
ORD IDord-0877e439d05246c6a9d15acc7e31afee
Source noteuspto-grants-2009_06