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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 981640Generated: October 30, 2026

Dichloromethane → HCID 14989226, compound

https://huagongshe.com/reaction/981640

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 numberUS04992433
Source datasetuspto-grants-1991_02
ORD IDord-d7809c1369124793955ab2a351cc7875
Source noteuspto-grants-1991_02