Potassium Carbonate → HCID 66960277, compound

HRID 2364655Notes

Reaction equation

HRID 2364655 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]2=[C:6]([CH:37]=1)[N:7]=[C:8]([NH:29][C:30](=[O:36])[O:31][C:32]([CH3:35])([CH3:34])[CH3:33])[CH2:9][C:10]([C:12](=[O:28])[N:13]([CH2:17][CH2:18][CH2:19][O:20][Si:21]([C:24]([CH3:27])([CH3:26])[CH3:25])([CH3:23])[CH3:22])[CH2:14][CH2:15][CH3:16])=[CH:11]2.[CH2:38]([O:40][C:41]([C:43]1[CH:48]=[CH:47][C:46](B(O)O)=[CH:45][CH:44]=1)=[O:42])[CH3:39].C(=O)([O-])[O-].[K+].[K+]>C(#N)C.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:32]([O:31][C:30]([NH:29][C:8]1[CH2:9][C:10]([C:12](=[O:28])[N:13]([CH2:17][CH2:18][CH2:19][O:20][Si:21]([C:24]([CH3:27])([CH3:26])[CH3:25])([CH3:23])[CH3:22])[CH2:14][CH2:15][CH3:16])=[CH:11][C:5]2[CH:4]=[CH:3][C:2]([C:46]3[CH:47]=[CH:48][C:43]([C:41]([O:40][CH2:38][CH3:39])=[O:42])=[CH:44][CH:45]=3)=[CH:37][C:6]=2[N:7]=1)=[O:36])([CH3:35])([CH3:33])[CH3:34]

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 27343504-Ethoxycarbonylphenylboronic acidHCID 86652684tert-butyl (1E,4E)-8-bromo-4-((3-(tert-butyldimethylsilyloxy)propyl)(propyl)carbamoyl)-3H-benzo[b]azepin-2-ylcarbamate

Product 1

HCID 66960277HCID 66960277, compound

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

tert-butyl (1E,4E)-8-bromo-4-((3-(tert-butyldimethylsilyloxy)propyl)(propyl)carbamoyl)-3H-benzo[b]azepin-2-ylcarbamate, 4-(ethoxycarbonyl)phenylboronic acid (1.5 equiv), tetrakis(triphenylphosphine)palladium(0), 2M aqueous potassium carbonate (3 equiv) were combined in 2 mls of acetonitrile in a microwave reaction vial. This mixture was heated in a microwave to 100° C. for 30 minutes. The mixture was then diluted with EtOAc, washed twice with brine, dried over sodium sulfate, and concentrated under reduced pressure. Preparative thin layer chromatography (2×0.5 mm plates, 7% MeOH/DCM) afforded ethyl 4-((1E,4E)-2-(tert-butoxycarbonylamino)-4-((3-(tert-butyldimethylsilyloxy)propyl)(propyl)carbamoyl)-3H-benzo[b]azepin-8-yl)benzoate.

Workup

  1. washwashed twice with brine
  2. dry with materialdried over sodium sulfate
  3. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-5381e37699d240bca26ab1f0c40a09ff
Source dataset
uspto-grants-2014_04
Patent number
US08691809B2

Reaction notes

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