Ammonia → HCID 19823741, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([C:12](=[N:19]O)[CH2:13][C:14]([OH:18])([CH3:17])[CH2:15][CH3:16])[CH2:11][CH2:10][CH2:9]2)=[CH:4][CH:3]=1.[BH4-].[Na+].O.N>COCCOC.[Ti](Cl)(Cl)(Cl)Cl>[NH2:19][CH:12]([C:8]1([C:5]2[CH:4]=[CH:3][C:2]([Cl:1])=[CH:7][CH:6]=2)[CH2:11][CH2:10][CH2:9]1)[CH2:13][C:14]([CH3:17])([OH:18])[CH2:15][CH3:16]Participants
Procedure
A solution of 1-[1-(4-chlorophenyl)cyclobutyl]-3-hydroxy-3-methylpentan-1-one oxime (4.6 g) in dry 1,2-dimethoxyethane (16 ml) was added at 0° C. over a period of 40 minutes to the mixture prepared by adding titanium (IV) chloride (3.6 ml) dropwise and then sodium borohydride (2.5 g) portionwise to stirred dry 1,2-dimethoxyethane (62 ml) at 0° C. under nitrogen. The reaction mixture was stirred for 14 hours at room temperature under nitrogen and cooled to 0° C. Water (160 ml) was added dropwise and the mixture basified by the addition of aqueous ammonia solution (17 ml-S.G. 0.880) and extracted with ether. The extracts were washed with brine, dried and the solvent removed to yield 1-amino-1-[1-(4-chlorophenyl)cyclobutyl]-3-methylpentan-3-ol which was dissolved in ether (70 ml). A solution of maleic acid (1.8 g) in ether (170 ml) was added and 1-Amino-1-[1-(4-chlorophenyl)cyclobutyl]-3-methylpentan-3-ol maleate (m.p. 106° C. (dec) softens 101° C.) was deposited.
Workup
- customprepared
- temperaturecooled to 0° C
- extractionextracted with ether
- washThe extracts were washed with brine
- customdried
- customthe solvent removed
Sources & evidence
- ORD record
- ord-f48a326429c345f5af5ba8ddb88ef181
- Source dataset
- uspto-grants-1990_05
- Patent number
- US04925879
Reaction notes
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