Dichloromethane → {[(2S)-2-amino-4-methylpentyl]oxy}(tert-butyl)dimethylsilane

HRID 1880497Notes

Reaction equation

HRID 1880497 reaction equation
ClCCl.[NH2:4][C@H:5]([CH2:10][OH:11])[CH2:6][CH:7]([CH3:9])[CH3:8].C(N(CC)CC)C.[Si:19](Cl)([C:22]([CH3:25])([CH3:24])[CH3:23])([CH3:21])[CH3:20]>CN(C1C=CN=CC=1)C.O>[Si:19]([O:11][CH2:10][C@@H:5]([NH2:4])[CH2:6][CH:7]([CH3:9])[CH3:8])([C:22]([CH3:25])([CH3:24])[CH3:23])([CH3:21])[CH3:20]

Participants

7

Reactant 4

HCID 6344DichloromethaneHCID 8471TriethylamineHCID 28928tert-Butyldimethylsilyl chlorideHCID 111307L-Leucinol

Product 1

HCID 11345273{[(2S)-2-amino-4-methylpentyl]oxy}(tert-butyl)dimethylsilane

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 962WaterSolvent

Procedure

To a room temperature dichloromethane (100 mL) solution of L-leucinol (6.0 g) was added triethylamine (11 mL), DMAP (0.1 g) and t-butyldimethylsilyl chloride (8.5 g). The mixture was stirred at room temperature for 2 hours and then water was added. The organic layer was separated and the aqueous further extracted with dichloromethane. The combined organic layers were washed with brine, dried with magnesium sulfate and the solvent was removed in vacuo to yield the title compound, a residue which was used as such in the next reaction. 1H NMR (CD3COCD3) δ 3.48 (m, 2H), 3.32 (m, 1H), 2.76 (m, 1H), 1.78 (m, 1H), 1.22-1.02 (m, 2H), 0.88 (m, 15H), 0.06 (s, 6H).

Workup

  1. customThe organic layer was separated
  2. extractionthe aqueous further extracted with dichloromethane
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried with magnesium sulfate
  5. customthe solvent was removed in vacuo

Sources & evidence

ORD record
ord-5165b9a466b54a71bc4f688db036a7e4
Source dataset
uspto-grants-2012_11
Patent number
US08318748B2

Reaction notes

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