Benzenesulfonamide → 2-[2-(2-Isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl]-benzenesulfonamide

HRID 1849476Notes

Reaction equation

HRID 1849476 reaction equation
[C:1]1([S:7]([NH2:10])(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C([O-])(=O)C.[K+].[CH:16]([N:19]1[C:23]([C:24]2[S:25][C:26]3[CH2:27][CH2:28][O:29][C:30]4[CH:37]=[C:36](B5OC(C)(C)C(C)(C)O5)[CH:35]=[CH:34][C:31]=4[C:32]=3[N:33]=2)=[N:22][C:21]([CH3:47])=[N:20]1)([CH3:18])[CH3:17].[NH4+].[Cl-]>C(#N)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(Cl)Cl>[CH:16]([N:19]1[C:23]([C:24]2[S:25][C:26]3[CH2:27][CH2:28][O:29][C:30]4[CH:37]=[C:36]([C:2]5[CH:3]=[CH:4][CH:5]=[CH:6][C:1]=5[S:7]([NH2:10])(=[O:9])=[O:8])[CH:35]=[CH:34][C:31]=4[C:32]=3[N:33]=2)=[N:22][C:21]([CH3:47])=[N:20]1)([CH3:18])[CH3:17]

Participants

9

Reactant 4

HCID 7370BenzenesulfonamideHCID 25517Ammonium ChlorideHCID 517044Potassium AcetateHCID 582038472-(2-Isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-8-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene

Product 1

HCID 582041172-[2-(2-Isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-8-yl]-benzenesulfonamide

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
140 °C

Procedure

To a microwave vial was added benzenesulfonamide (0.0992 g, 0.420 mmol) and potassium acetate (0.124 g, 0.00126 mol) in acetonitrile (2.0 mL) and water (2.0 mL). The mixture was thoroughly purged with N2. 2-(2-Isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-8-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulene (0.200 g, 0.442 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.0485 g, 0.0420 mmol) were added and the vial was sealed immediately. The reaction was heated to 140° C. for 20 minutes in the microwave. Methylene chloride and saturated NH4Cl were added and the mixture was extracted 3 times with methylene chloride. The organic layers were combined, dried with MgSO4 and concentrated. The crude was purified by reverse-phase HPLC to give 545 as a white solid. MS(ESI+) 482.1. 1H NMR (400 MHz, DMSO) δ 8.35 (d, J=8.2 Hz, 1H), 8.05 (dd, J=7.7, 1.3 Hz, 1H), 7.67-7.55 (m, 2H), 7.37 (dd, J=7.4, 1.4 Hz, 1H), 7.23 (m, 3H), 7.10 (d, J=1.7 Hz, 1H), 5.79 (hept, J=6.6 Hz, 1H), 4.41 (t, J=4.9 Hz, 2H), 3.46 (t, J=4.9 Hz, 2H), 2.33 (s, 3H), 1.54 (d, J=6.6 Hz, 6H)

Workup

  1. customThe mixture was thoroughly purged with N2
  2. customthe vial was sealed immediately
  3. extractionthe mixture was extracted 3 times with methylene chloride
  4. dry with materialdried with MgSO4
  5. concentrationconcentrated
  6. customThe crude was purified by reverse-phase HPLC

Sources & evidence

ORD record
ord-266a0551a9754b2fa4eceb1bef21d851
Source dataset
uspto-grants-2015_02
Patent number
US08952043B2

Reaction notes

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