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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 345299Generated: October 29, 2026

Cysteamine → HCID 19992149, compound

https://huagongshe.com/reaction/345299

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCysteamineHCID 6058—
ReactantHCID 54522509HCID 54522509—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 19992149HCID 1999214952.5%

Reaction Conditions

Temperature0 °C

Reaction Steps

A mixture of 2-phenylmethyl-1-carboxymethylenecyclohexane (10 g) and 2-aminoethanethiol (10 g) in N,N-dimethylformamide (10 ml) was refluxed for 20 hours under nitrogen atmosphere. The mixture was cooled to 0° C. and diluted with ethyl acetate (100 ml), and the mixture was washed with 1N hydrochloric acid (100 ml), water (100 ml), a saturated aqueous solution of sodium bicarbonte (100 ml) and brine (100 ml). The organic layer was dried over magnesium sulfate and concentrated in vacuo. The residue was triturated with diethyl ether to give 1-phenylmethyl-11-oxo-7-thia-10-azaspiro[5.6]dodecane (6.6 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05057513
Source datasetuspto-grants-1991_10
ORD IDord-45a9cc542ad24e73943a4ad5996f67ac
Source noteuspto-grants-1991_10