Dichloromethane → HCID 14989226, compound
Reaction equation
O[CH2:2][CH2:3][CH2:4][CH:5]1[CH2:10][CH2:9][N:8]([C:11]2[CH:12]=[CH:13][C:14](=[O:17])[NH:15][N:16]=2)[CH2:7][CH2:6]1.[Cl:18]CCl.S(Cl)(Cl)=O>O1CCCC1>[Cl:18][CH2:2][CH2:3][CH2:4][CH:5]1[CH2:10][CH2:9][N:8]([C:11]2[CH:12]=[CH:13][C:14](=[O:17])[NH:15][N:16]=2)[CH2:7][CH2:6]1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
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).