Azido(trimethyl)stannane → 1-[(2'-(Trimethylstannyltetrazol-5-yl)biphenyl-4-yl)methyl]-2-butyl-4-chloro-5-hydroxymethylimidazole
Reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[CH:14]=[CH:13][C:12]([CH2:15][N:16]2[C:20]([CH2:21][OH:22])=[C:19]([Cl:23])[N:18]=[C:17]2[CH2:24][CH2:25][CH2:26][CH3:27])=[CH:11][CH:10]=1)#[N:2].[CH3:28][Sn:29]([N:32]=[N+:33]=[N-:34])([CH3:31])[CH3:30]>>[CH3:28][Sn:29]([CH3:31])([CH3:30])[N:32]1[C:1]([C:3]2[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=2[C:9]2[CH:10]=[CH:11][C:12]([CH2:15][N:16]3[C:20]([CH2:21][OH:22])=[C:19]([Cl:23])[N:18]=[C:17]3[CH2:24][CH2:25][CH2:26][CH3:27])=[CH:13][CH:14]=2)=[N:2][N:34]=[N:33]1Participants
3
Procedure
To a solution of 1-[(2'-cyano-biphenyl-4-yl)methyl]-2-butyl-4-chloro-5-hydroxymethyl-imidazole (4.40 g, 0.011 mole) in xylenes (40.0 ml) was added trimethyltin azide (2.80 g, 0.014 mole), and the reaction was heated at 115°-120° for 40 hrs. The mixture was cooled to 50° and filtered to yield 1-{[2'-(N-trimethylstannyl-tetrazol-5-yl)-biphenyl-4-yl]methyl}-2-butyl-4-chloro-5-hydroxymethyl imidazole (6.55 g, 99%), m.p. 154°-160°; 1H NMR (CDCl3 /DMSO-d6) δ: 7.80-7.30 (m, 4H), 7.03 (q, 4H), 5.23 (s, 3H), 4.43 (s, 3H), 2.54 (t, 3H); 2.00 (s, 1H), 1.80-1.10 (m, 4H); 0.85 (t, 3H); 0.40 (s, 9H).
Workup
- temperaturethe reaction was heated at 115°-120° for 40 hrs
- temperatureThe mixture was cooled to 50°
- filtrationfiltered
Sources & evidence
- ORD record
- ord-674ebf986f35461a925a83ee673c63a4
- Source dataset
- uspto-grants-1989_09
- Patent number
- US04870186
Reaction notes
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