Triethylamine → methanesulfonic acid 2-(2-isopropyl-2H-tetrazol-5-yl)-ethyl ester

HRID 549416Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 549416
[CH:1]([N:4]1[N:8]=[N:7][C:6]([CH2:9][CH2:10][OH:11])=[N:5]1)([CH3:3])[CH3:2].[CH:12]([N:15]1[C:19]([CH2:20][CH2:21][OH:22])=[N:18][N:17]=[N:16]1)([CH3:14])[CH3:13].[CH3:23][S:24](Cl)(=[O:26])=[O:25].C(N(CC)CC)C>C(Cl)Cl>[CH:1]([N:4]1[N:8]=[N:7][C:6]([CH2:9][CH2:10][O:11][S:24]([CH3:23])(=[O:26])=[O:25])=[N:5]1)([CH3:3])[CH3:2].[CH:12]([N:15]1[C:19]([CH2:20][CH2:21][O:22][S:24]([CH3:23])(=[O:26])=[O:25])=[N:18][N:17]=[N:16]1)([CH3:14])[CH3:13]

Komponenten

7

Versuchsvorschrift

To a mixture of 2-(2-isopropyl-2H-tetrazol-5-yl)-ethanol and 2-(1-isopropyl-1H-tetrazol-5-yl)-ethanol (1.5 g, 9.6 mmol) in methylene chloride (40 mL) was added methanesulfonyl chloride (0.82 mL, 11 mmol) and triethylamine (2.67 mL, 19.2 mmol). The solution was stirred at room temperature for 6 h, loaded on to a silica gel column, and eluted using methylene chloride/heptane followed by ethyl acetate/methylene chloride to provide methanesulfonic acid 2-(2-isopropyl-2H-tetrazol-5-yl)-ethyl ester (370 mg, 17% yield) and methanesulfonic acid 2-(1-isopropyl-1H-tetrazol-5-yl)-ethyl ester (80 mg, 4% yield).

Aufarbeitung

  1. washeluted

Quellen und Nachweise

ORD-Eintrag
ord-e712c0c243ac48b19a7f1b8cce43ba33
Quelldatensatz
uspto-grants-2011_05
Patentnummer
US07943652B2

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