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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1292459Generated: October 31, 2026

Methanol → HCID 18915248, compound

https://huagongshe.com/reaction/1292459

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantN-methyl-N-phenyl-hydrazineHCID 36299—
Reactant8-Azaspiro[4,5]decane-1-one hydrochlorideHCID 18403965—
SolventHydrochloric AcidHCID 313—
ProductHCID 18915248HCID 1891524897.5%

Reaction Steps

A solution of 8-azaspiro[4,5]decane-1-one hydrochloride (5.2 g) in 95% ethanolic hydrochloric acid (30 ml) and 1-methyl-1-phenylhydrazine (5 g) was heated overnight on a steam bath, under nitrogen. The reaction mixture was cooled to ambient temperature, methanol was added and the mixture was concentrated in vacuo. The residue was flash chromatographed (silica gel) eluting with 10% methanol/dichloromethane. The appropriate fractions were collected and concentrated to afford 7.4 g (95%) of product, mp>270° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05756743
Source datasetuspto-grants-1998_05
ORD IDord-c7e7ad48a6ea4fc9ada8a78ba5b0e09d
Source noteuspto-grants-1998_05