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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 577798Generated: October 29, 2026

Dichloromethane → HCID 58689761, compound

https://huagongshe.com/reaction/577798

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantDimethyl SulfateHCID 6497—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 58689781HCID 58689781—
CatalystTetrabutylammonium BromideHCID 74236—
SolventWaterHCID 962—
ProductHCID 58689761HCID 5868976166.6%

Reaction Steps

To a suspension of (3-{[(3,5-bis-trifluoromethyl-benzyl)-(2H-tetrazol-5-yl)-amino]-methyl}-5,6-dimethyl-pyridin-2-yl)-bis-cyclopropylmethyl-amine (0.3 g, 0.54 mmol), obtained in step (viii), in water (4 mL) was added sodium hydroxide (0.04 g, 1.0 mmol), and this mixture was stirred for 15 min at RT, followed by the addition of DCM (4 mL). Dimethyl sulfate (0.13 g, 1.03 mmol) was then added to this mixture, followed by the addition of tetrabutylammonium bromide (0.008 g, 0.024 mmol). The mixture was then stirred for 0.5 h, after which the organic layer was separated from the aqueous layer which was extracted with DCM (3×10 mL). The combined organic layer was washed with brine, dried over sodium sulfate, and then concentrated under vacuum to afford the title compound as light yellow oil (0.200 g), yield: 66.6%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09040558B2
Source datasetuspto-grants-2015_05
ORD IDord-43eeee6e88384f2d9c95931ed1073412
Source noteuspto-grants-2015_05