Water → HCID 58204606, compound

HRID 2044749Notes

Reaction equation

HRID 2044749 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]2[O:11][CH2:10][CH2:9][N:8]3[CH:12]=[C:13]([C:15]4[N:19]([C:20]5[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=5[Cl:26])[N:18]=[CH:17][N:16]=4)[N:14]=[C:7]3[C:6]=2[CH:27]=1.[C:28]1(B(O)O)[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1.C([O-])([O-])=O.[Cs+].[Cs+].O>O1CCOCC1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[Cl:26][C:21]1[CH:22]=[CH:23][CH:24]=[CH:25][C:20]=1[N:19]1[C:15]([C:13]2[N:14]=[C:7]3[C:6]4[CH:27]=[C:2]([C:28]5[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=5)[CH:3]=[CH:4][C:5]=4[O:11][CH2:10][CH2:9][N:8]3[CH:12]=2)=[N:16][CH:17]=[N:18]1

Participants

7

Reactant 4

HCID 962WaterHCID 10796Cesium carbonateHCID 66827Phenylboronic AcidHCID 67050805HCID 67050805, compound

Product 1

HCID 58204606HCID 58204606, compoundYield 38%

Reagents, catalysts & solvents 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
130 °C

Procedure

A mixture of 10-bromo-2-(1-(2-chlorophenyl)-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine (0.5 mmol), phenylboronic acid (200 mg, 0.75 mmol), Cs2CO3 (490 mg, 1.5 mmol) was stirred in dioxane and water (5:1, 3.0 mL) followed by the addition of Pd(dppf)Cl2 (30 mg). The reaction mixture was bubbled with N2 gas for 10 min, the reaction tube was sealed, and the contents were stirred at 130° C. under microwave irradiation for 30 min. The mixture was filtered through celite and the filtrate was concentrated and purified with prep-HPLC to give 563 (82 mg, 38%). 1H-NMR (DMSO, 400 MHz): δ 8.18 (s, 1H), 8.01 (s, 1H), 7.89 (s, 1H), 7.38-7.70 (m, 10H), 7.14 (d, J=7.6 Hz, 1H), 4.45-4.51 (m, 4H)

Workup

  1. customThe reaction mixture was bubbled with N2 gas for 10 min
  2. customthe reaction tube was sealed
  3. filtrationThe mixture was filtered through celite
  4. concentrationthe filtrate was concentrated
  5. custompurified with prep-HPLC

Sources & evidence

ORD record
ord-24e66c43fed34596827b4f070763ccd6
Source dataset
uspto-grants-2013_11
Patent number
US08586574B2

Reaction notes

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