8-bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene → HCID 58204593, compound

HRID 886264Notes

Reaction equation

HRID 886264 reaction equation
Br[C:2]1[CH:23]=[CH:22][C:5]2[C:6]3[N:7]([CH:11]=[C:12]([C:14]4[N:18]([CH:19]([CH3:21])[CH3:20])[N:17]=[CH:16][N:15]=4)[N:13]=3)[CH2:8][CH2:9][O:10][C:4]=2[CH:3]=1.[CH3:24][C:25]1[N:26]([CH2:34][CH2:35][O:36][CH:37]2[CH2:42][CH2:41][CH2:40][CH2:39][O:38]2)[CH:27]=[C:28]([Sn](C)(C)C)[N:29]=1>O1CCOCC1.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>[CH:19]([N:18]1[C:14]([C:12]2[N:13]=[C:6]3[C:5]4[CH:22]=[CH:23][C:2]([C:28]5[N:29]=[C:25]([CH3:24])[N:26]([CH2:34][CH2:35][O:36][CH:37]6[CH2:42][CH2:41][CH2:40][CH2:39][O:38]6)[CH:27]=5)=[CH:3][C:4]=4[O:10][CH2:9][CH2:8][N:7]3[CH:11]=2)=[N:15][CH:16]=[N:17]1)([CH3:21])[CH3:20]

Participants

5

Reactant 2

HCID 582043138-bromo-2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azuleneHCID 67050696HCID 67050696, compound

Product 1

HCID 58204593HCID 58204593, compoundYield 32.3%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
120 °C

Procedure

A mixture of 9-bromo-2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine (300 mg, 0.8 mmol), Pd(PPh3)4 (93 mg, 0.08 mmol), 2-methyl-1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)-4-(trimethylstannyl)-1H-imidazole (600 mg, 1.6 mmol) in dioxane (2 ml) was bubbled with N2 for about 2 min and then stirred at 120° C. for 35 min under the irradition of microwave. Filtered, concentrated and purified by pre-TLC (EtOAc) to give 130 mg of 256. Yield=32%. 1H NMR (CDCl3, 400 MHz): δ8.44-8.42 (m, 1H, ArH), 7.81 (s, 1H), 7.58 (s, 1H), 7.48-7.46 (m, 1H), 7.42 (d, J=1.6 Hz, 1H), 7.19 (s, 1H), 4.51-4.95 (m, 1H), 4.45-4.44 (t, 1H), 4.39-4.38 (m, 2H), 4.38-4.37 (m, 2H), 4.07-4.04 (m, 2H), 4.00-4.97 (m, 1H), 3.63-3.54 (m, 2H), 3.40-3.36 (m, 1H), 2.49 (s, 3H), 1.76-1.60 (m, 4H), 1.48-1.47 (m, 2H) LC-MS: m/z=504 [M+H+]

Workup

  1. customwas bubbled with N2 for about 2 min
  2. filtrationFiltered
  3. concentrationconcentrated
  4. custompurified by pre-TLC (EtOAc)

Sources & evidence

ORD record
ord-dc53699381af4ab19967c7fce44c17e7
Source dataset
uspto-grants-2012_08
Patent number
US08242104B2

Reaction notes

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