3-Methylbenzenesulphonyl chloride → HCID 9820889, compound
Reaction equation
[CH3:1][C:2]1[CH:3]=[C:4]([S:8](Cl)(=[O:10])=[O:9])[CH:5]=[CH:6][CH:7]=1.Cl.[CH3:13][CH:14]1[CH:19]=[C:18]([CH3:20])[CH:17]([C:21]2[CH:26]=[CH:25][C:24]([O:27][CH3:28])=[CH:23][CH:22]=2)[O:16][NH:15]1>C(#N)C.C(Cl)(Cl)Cl>[CH3:13][CH:14]1[CH:19]=[C:18]([CH3:20])[CH:17]([C:21]2[CH:22]=[CH:23][C:24]([O:27][CH3:28])=[CH:25][CH:26]=2)[O:16][N:15]1[S:8]([C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([CH3:1])[CH:3]=1)(=[O:10])=[O:9]Participants
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of 3-methylbenzenesulphonyl chloride (0.075 mmol) in acetonitrile (1.5 ml) was added a solution of 3,6-dihydro-3,5-dimethyl-6-(4-methoxyphenyl)-2H-1,2-oxazine hydrochloride(0.403 mmol) in chloroform (0.5 ml) followed by poly(4-vinyl)pyridine (53 mg). The mixture was shaken at room temperature for 24 h then added polystyrene (co-divinylbenzene)amino methylated (100 mg) and the mixture shaken at room temperature for a further 24 h. The mixture was then filtered and the resin washed twice with chloroform. The filtrate was evaporated to give 3,6-dihydro-3,5-dimethyl-6-(4-methoxyphenyl)-2-(3-methylbenzenesulphonyl)-2H-1,2-oxazine as an oil. 1H NMR (CDCl3)δ 1.56(3H, d), 2.39(3H, s), 3.82(3H, s) 4.49(1H, m), 5.20(1H, s), 5.69(1H, d), 6.81(2H, d), 7.11(2H, d), 7.34(2H, m), 7.67(2H, d)
Workup
- stirringthe mixture shaken at room temperature for a further 24 h
- filtrationThe mixture was then filtered
- washthe resin washed twice with chloroform
- customThe filtrate was evaporated
Sources & evidence
- ORD record
- ord-012fcf5073254935b1a2b72f32845d44
- Source dataset
- uspto-grants-2002_11
- Patent number
- US06482824B1
Reaction notes
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