Sodium borohydride → HCID 12773888, compound
Reaction equation
[CH3:1][N:2]1[C:6]([S:7][CH2:8][C:9]2[C:18]3[C:13](=[CH:14][C:15]([O:27][CH2:28][C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)=[C:16]([O:19][CH2:20][C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=4)[CH:17]=3)[CH2:12][CH2:11][N:10]=2)=[N:5][N:4]=[N:3]1.[BH4-].[Na+]>CO>[CH3:1][N:2]1[C:6]([S:7][CH2:8][CH:9]2[C:18]3[C:13](=[CH:14][C:15]([O:27][CH2:28][C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=4)=[C:16]([O:19][CH2:20][C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=4)[CH:17]=3)[CH2:12][CH2:11][NH:10]2)=[N:5][N:4]=[N:3]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a suspension of 1-(1-methyl-1H-tetrazol-5-yl)-thiomethyl- 6,7-dibenzyloxy-3,4-dihydroisoquinoline (1g) in methanol (10 ml) was added sodium borohydride (120 mg), and the mixture was stirred for 1.5 hours at room temperature. After the reaction precipitated crystals were collected by filtration and washed with methanol to give 1-(1-methyl-1H-tetrazol-5-yl)thiomethyl- 6,7-dibenzyloxy-1,2,3,4-tetrahydroisoquinoline (0.88 g). This crystals were recrystallized from ethanol to give crystals, mp 106° to 108°C.
Workup
- customAfter the reaction precipitated crystals
- filtrationwere collected by filtration
- washwashed with methanol
Sources & evidence
- ORD record
- ord-2f3945fc919f4ec7b29d50c324d182f1
- Source dataset
- uspto-grants-1976_08
- Patent number
- US03978063
Reaction notes
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