Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1366596Generated: October 25, 2026

phenylmethyl (9aR)-octahydro-2H-pyrido[1,2-a]pyrazine-2-carboxylate → (R)-Octahydro-pyrido[1,2-a]pyrazine

https://huagongshe.com/reaction/1366596

Reaction equation

Participants

RoleNameHCIDCharge
Reactantphenylmethyl (9aR)-octahydro-2H-pyrido[1,2-a]pyrazine-2-carboxylateHCID 86636997—
SolventMethanolHCID 887—
Product(R)-Octahydro-pyrido[1,2-a]pyrazineHCID 773775103.8%

Reaction Steps

Phenylmethyl (9aR)-octahydro-2H-pyrido[1,2-a]pyrazine-2-carboxylate (688 mg, 2.50 mmol) was dissolved in MeOH (15 mL), degassed and placed under argon. 10% Pd/C (206 mg) was added, and the contents were thoroughly degassed and placed under a hydrogen balloon for 2 h. The contents were then degassed, and the Pd/C was removed by filtration through Celite, washing with MeOH. The filtrate was concentrated in vacuo to provide pure (9aR)-octahydro-2H-pyrido[1,2-a]pyrazine (364 mg, 99%). LCMS: (M+H)+: 141.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893056B2
Source datasetuspto-grants-2011_02
ORD IDord-9894b32f97834443b64a354cae2c33f8
Source noteuspto-grants-2011_02