Triethylamine → HCID 24823629, compound

HRID 1823075Notes

Reaction equation

HRID 1823075 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C@@H:8]([OH:27])[CH2:9][N:10]([CH2:18][CH2:19][C:20]2[CH:25]=[CH:24][C:23]([OH:26])=[CH:22][CH:21]=2)[C:11](=[O:17])[O:12][C:13]([CH3:16])([CH3:15])[CH3:14])[CH:5]=[CH:6][CH:7]=1.[Si:28]([O:35][C:36]1[CH:41]=[CH:40][C:39](B(O)O)=[CH:38][CH:37]=1)([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29].C(N(CC)CC)C>ClCCl.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[Si:28]([O:35][C:36]1[CH:37]=[CH:38][C:39]([O:26][C:23]2[CH:24]=[CH:25][C:20]([CH2:19][CH2:18][N:10]([CH2:9][C@@H:8]([C:4]3[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[CH:3]=3)[OH:27])[C:11](=[O:17])[O:12][C:13]([CH3:16])([CH3:14])[CH3:15])=[CH:21][CH:22]=2)=[CH:40][CH:41]=1)([C:31]([CH3:34])([CH3:33])[CH3:32])([CH3:30])[CH3:29]

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 111078154-(tert-Butyldimethylsilyloxy)phenylboronic Acid (contains varying amounts of Anhydride)HCID 24822464HCID 24822464, compound

Product 1

HCID 24823629HCID 24823629, compoundYield 55.4%

Reagents, catalysts & solvents 2

HCID 8895Cupric acetateCatalystHCID 6344DichloromethaneSolvent

Procedure

To a suspension of tert-butyl [(2R)-2-(3-chlorophenyl)-2-hydroxyethyl][2-(4-hydroxyphenyl)ethyl]carbamate (710 mg), 4-[[tert-butyl(dimethyl)silyl]oxy]phenylboronic acid (457 mg), triethylamine (1.26 ml) and powdered 4 Å molecular sieves (700 mg) in dichloromethane (18 ml) was added copper(II) acetate (330 mg), and the mixture was stirred at room temperature for 18 hours under ambient atmosphere. The resulting slurry was filtered off, and the filtrate was evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate=2/1) to give tert-butyl [2-[4-[4-[[tert-butyl(dimethyl)silyl]oxy]phenoxy]phenyl]ethyl][(2R)-2-(3-chlorophenyl)-2-hydroxyethyl]carbamate (600 mg).

Workup

  1. filtrationThe resulting slurry was filtered off
  2. customthe filtrate was evaporated under reduced pressure
  3. customThe residue was purified by column chromatography on silica gel (hexane/ethyl acetate=2/1)

Sources & evidence

ORD record
ord-ecb0fed7db514c89b91953b1171b4691
Source dataset
uspto-grants-2006_05
Patent number
US07037938B2

Reaction notes

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