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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1030921Generated: October 28, 2026

Dichloromethane → HCID 14989226, compound

https://huagongshe.com/reaction/1030921

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 14989225HCID 14989225—
SolventTetrahydrofuranHCID 8028—
ProductHCID 14989226HCID 14989226100%

Reaction Steps

To a stirred and cooled (ice bath) mixture of 2.8 parts of 6-[4-(3-hydroxypropyl)-1-piperidinyl]-3(2H)-pyridazinone, 65 parts of dichloromethane and 45 parts of tetrahydrofuran were added dropwise 2.8 parts of thionyl chloride. Upon complete addition, stirring was continued overnight at room temperature. The whole was evaporated and the residue was taken up in methylbenzene. The organic layer was evaporated again, yielding 3 parts (100%) of 6-[4-(3-chloropropyl)-1-piperidinyl]-3(2H)-pyridazinone as a residue (int. 100).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05106973
Source datasetuspto-grants-1992_04
ORD IDord-0b86f44a2a8c4f1a9337399d2abe226e
Source noteuspto-grants-1992_04