Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 237871Generated: October 27, 2026

Ethyl 5-methylhex-2-ynoate → HCID 25070151, compound

https://huagongshe.com/reaction/237871

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 5-methylhex-2-ynoateHCID 12383857—
Reactant(S)-5-(4-bicyclo[3.3.1]non-9-yl-phenoxymethyl)-4,5-dihydro-oxazol-2-ylamineHCID 68527534—
SolventEthanolHCID 702—
ProductHCID 25070151HCID 2507015135.1%

Reaction Conditions

Temperature160 °C

Reaction Steps

To a solution of (S)-5-(4-bicyclo[3.3.1]non-9-yl-phenoxymethyl)-4,5-dihydro-oxazol-2-ylamine (0.600 g, 1.91 mmol) in ethanol (5 mL) was added 0.294 g (2.86 mmol) of 5-methyl-hex-2-ynoic acid ethyl ester. The reaction mixture was heated in a microwave oven at 160° C. for 20 minutes. The reaction mixture was concentrated and purified by chromatography on silica gel eluting with MeOH/CH2Cl2 to afford 0.283 g of the title compound. [α]D25 −11.17 (c 0.537, CHCl3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642603B2
Source datasetuspto-grants-2014_02
ORD IDord-60a06bbd5187403cbb87bca7e585e68e
Source noteuspto-grants-2014_02