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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2304571Generated: October 30, 2026

Methyl iodide → HCID 131723441, compound

https://huagongshe.com/reaction/2304571

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantLithium HexamethyldisilazideHCID 2733832—
ReactantHCID 18435791HCID 18435791—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 131723441HCID 131723441—

Reaction Conditions

Temperature-20 °C

Reaction Steps

A solution of 1-(2-cyanoethyl)-4-cyano-4-phenyl-piperidine (2.81 g, 11.7 mmol) dissolved in tetrahydrofuran(110 mL) was cooled to −20° C. under an atmosphere of nitrogen and 1 M lithium bistrimethylsilylamide in tetrahydrofuran (12.3 ml) was added by syringe. The clear solution was allowed to stir for 30 min. and then methyl iodide (0.80 mL, 12.9 mmol) was added by syringe. This reaction mixture was stirred for 5 minutes and then warmed to room temperature and stirred for 30 minutes. The reaction was diluted with diethyl ether and washed with water and brine. The organic layer was dried over sodium sulfate, filtered, and the solvent removed to give an oil. This residue was purified by preparative centrifugal chromatography using a 5-50% ethyl acetate/hexane gradient to give the title compound which was used as is.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06436962B1
Source datasetuspto-grants-2002_08
ORD IDord-a10625dfee214ed6b2a49138edf732ce
Source noteuspto-grants-2002_08