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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 494096Generated: October 26, 2026

Hydrazine hydrate (1:1) → HCID 68864415, compound

https://huagongshe.com/reaction/494096

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantEthyl 6-acetyl-8-(benzyloxy)-2-methyl-1-oxo-1,2,3,4-tetrahydro-pyrrolo[1,2-a]-pyrazine-7-carboxylateHCID 68866335—
SolventAcetic AcidHCID 176—
ProductHCID 68864415HCID 68864415—

Reaction Steps

A solution of ethyl 6-acetyl-8-(benzyloxy)-2-methyl-1-oxo-1,2,3,4-tetrahydropyrrolo[1,2-a]-pyrazine-7-carboxylate (0.44 g,1.2 mmol; see Example 7, Step 7), and hydrazine monohydrate (0.37 mL, 11.9 mmol) in glacial acetic acid (2 mL) was heated in a microwave oven at 180° C. for 20 minutes. The reaction mixture was concentrated under vacuum and the residue partitioned between dichloromethane and aqueous sodium bicarbonate. The organic extract was dried over MgSO4, filtered, and concentrated to provide the titled dione.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538112B2
Source datasetuspto-grants-2009_05
ORD IDord-89ce86da2c114c9fa30b88ff29a041d9
Source noteuspto-grants-2009_05