Triethylamine → 3-(Tert-butyldimethylsilyloxymethyl)aniline

HRID 1647509Notes

Reaction equation

HRID 1647509 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:7]=[CH:8][CH:9]=1)[CH2:5][OH:6].[Si:10](Cl)([C:13]([CH3:16])([CH3:15])[CH3:14])([CH3:12])[CH3:11].C(N(CC)CC)C>C(Cl)Cl>[Si:10]([O:6][CH2:5][C:4]1[CH:3]=[C:2]([CH:9]=[CH:8][CH:7]=1)[NH2:1])([C:13]([CH3:16])([CH3:15])[CH3:14])([CH3:12])[CH3:11]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 28928tert-Butyldimethylsilyl chlorideHCID 802933-Aminobenzyl alcohol

Product 1

HCID 105859773-(Tert-butyldimethylsilyloxymethyl)anilineYield 57%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 3-aminobenzyl alcohol (2.00 g, 16.2 mmol) and tert-butyldimethylsilyl chloride (2.90 g, 19.4 mmol) in CH2Cl2 (32.5 mL) was added triethylamine (7.45 mL, 53.5 mmol). The reaction mixture was stirred for 18 hours at ambient temperature and was then partitioned between ethyl acetate and H2O. The organic phase was washed twice with H2O, twice with brine, dried over MgSO4, filtered, and concentrated in vacuo. 3-(O-t-butyldimethylsilyloxymethyl)aniline (2.18 g, 57%) was obtained as a yellow oil by chromatography on silica gel (30% ethyl acetate/hexane). 1H NMR (300 MHz, CDCl3) δ7.10 (1H, t, J=7.5 Hz), 6.67-6.72 (2H, m), 6.56 (1H, br d, J=7.5 Hz), 4.66 (2H, s), 3.63 (2H, br s), 0.94 (9H, s), 0.09 (6H, s). MS m/e 238(M+H)+, 255 (M+NH4)+.

Workup

  1. customwas then partitioned between ethyl acetate and H2O
  2. washThe organic phase was washed twice with H2O, twice with brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-77675cff1ce94d6bbddf48bd25d52a1b
Source dataset
uspto-grants-1995_07
Patent number
US05432194

Reaction notes

Loading…