Methanol → HCID 67563677, compound
Reaction equation
S(Cl)([Cl:3])=O.Cl.[CH3:6][NH:7][CH:8]([CH:13]([C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[CH2:9][C:10]([OH:12])=[O:11].[CH3:26]O>>[ClH:3].[CH3:26][O:11][C:10](=[O:12])[CH2:9][CH:8]([NH:7][CH3:6])[CH:13]([C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1)[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1Participants
4
Procedure
3 ml (40.9 mmol) of thionyl chloride are added dropwise at 0° C. to a fine suspension of 6.2 g (20.4 mmol) of 3-methylamino-4,4-diphenyl-butyric acid hydrochloride in 70 ml of methanol. After a total of 88 hours at room temperature the reaction mixture is concentrated by evaporation and ether is added. The beige precipitate is filtered off, then washed with ether and dried under a high vacuum. The title compound is obtained in the form of a beige solid. Rt (HPLC)=11.2 min; 1H-NMR (300 MHz, d6 -DMSO, RT) d 9.41 (br, 1H), 8.56 (br, 1H), 7.59-7.18 (m, 10H), 4.56 (m, 1H), 4.43 (d, 1H), 3.46 (s, 3H), 2.87 (dd, 1H), 2.64 (dd,1H), 2.40 (s, 3H).
Workup
- concentrationAfter a total of 88 hours at room temperature the reaction mixture is concentrated by evaporation and ether
- additionis added
- filtrationThe beige precipitate is filtered off
- washwashed with ether
- customdried under a high vacuum
Sources & evidence
- ORD record
- ord-798cc1ec92cb45b69eae2875325e91e4
- Source dataset
- uspto-grants-1999_07
- Patent number
- US05929067
Reaction notes
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