Methanol → HCID 57934216, compound

HRID 1950164Notes

Reaction equation

HRID 1950164 reaction equation
[N:1]1([CH2:8][CH2:9][O:10][C:11]2[CH:60]=[CH:59][C:14]([CH2:15][N:16]([CH2:49][CH2:50][O:51]CC3C=CC=CC=3)[C:17]3[CH:22]=[C:21]([O:23][Si:24]([C:27]([CH3:30])([CH3:29])[CH3:28])([CH3:26])[CH3:25])[CH:20]=[CH:19][C:18]=3[CH:31]3[CH2:40][CH2:39][C:38]4[C:33](=[CH:34][CH:35]=[C:36]([O:41][Si:42]([C:45]([CH3:48])([CH3:47])[CH3:46])([CH3:44])[CH3:43])[CH:37]=4)[CH2:32]3)=[CH:13][CH:12]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.B(Cl)(Cl)Cl.CO>ClCCl.C(=O)(O)[O-].[Na+]>[N:1]1([CH2:8][CH2:9][O:10][C:11]2[CH:60]=[CH:59][C:14]([CH2:15][N:16]([C:17]3[CH:22]=[C:21]([O:23][Si:24]([C:27]([CH3:30])([CH3:29])[CH3:28])([CH3:26])[CH3:25])[CH:20]=[CH:19][C:18]=3[CH:31]3[CH2:40][CH2:39][C:38]4[C:33](=[CH:34][CH:35]=[C:36]([O:41][Si:42]([C:45]([CH3:48])([CH3:47])[CH3:46])([CH3:44])[CH3:43])[CH:37]=4)[CH2:32]3)[CH2:49][CH2:50][OH:51])=[CH:13][CH:12]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

6

Reactant 3

HCID 887MethanolHCID 25135Boron TrichlorideHCID 57934029HCID 57934029, compound

Product 1

HCID 57934216HCID 57934216, compoundYield 59.7%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 516892Sodium BicarbonateSolvent

Procedure

To a solution of [4-(2-azepan-1-ylethoxy)benzyl](2-benzyloxyethyl) {5-(tert-butyldimethylsilyloxy)-2-[6-(tert-butyldimethylsilyloxy)-1,2,3,4-tetrahydronaphthalen-2-yl]phenyl}amine (450 mg) in dichloromethane (23 ml) was added dropwise boron trichloride (1.0 M solution in dichloromethane) (4.2 ml) at −78° C., and the solution was stirred for 30 minutes. At −78° C., to the reaction solution was added methanol (2 ml), and the reaction mixture was diluted with a saturated aqueous solution of sodium bicarbonate. The solution was extracted with chloroform, then washed with brine, dried over anhydrous magnesium sulfate, and then the solvent was evaporated in vacuo. The residue was purified by NH silica gel column chromatography (hexane-ethyl acetate system) to provide the title compound (240 mg).

Workup

  1. extractionThe solution was extracted with chloroform
  2. washwashed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated in vacuo
  5. customThe residue was purified by NH silica gel column chromatography (hexane-ethyl acetate system)

Sources & evidence

ORD record
ord-5ae8ff1e7eee4b348125fee7b76c821b
Source dataset
uspto-grants-2013_03
Patent number
US08399520B2

Reaction notes

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