Sodium Carbonate → 5-(2-bromo-4-(trifluoromethyl)phenyl)-N-(2,4-dimethoxybenzyl)-N-(1,2,4-thiadiazol-5-yl)naphthalene-2-sulfonamide

HRID 1473285

Reaktionsgleichung

Reaktionsgleichung von HRID 1473285
[CH3:1][O:2][C:3]1[CH:37]=[C:36]([O:38][CH3:39])[CH:35]=[CH:34][C:4]=1[CH2:5][N:6]([C:29]1[S:33][N:32]=[CH:31][N:30]=1)[S:7]([C:10]1[CH:19]=[CH:18][C:17]2[C:12](=[CH:13][CH:14]=[CH:15][C:16]=2B2OC(C)(C)C(C)(C)O2)[CH:11]=1)(=[O:9])=[O:8].[Br:40][C:41]1[CH:46]=[C:45]([C:47]([F:50])([F:49])[F:48])[CH:44]=[CH:43][C:42]=1I.C(=O)([O-])[O-].[Na+].[Na+]>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].C(Cl)Cl.O.C(O)(C)(C)C.O1CCOCC1>[Br:40][C:41]1[CH:46]=[C:45]([C:47]([F:48])([F:49])[F:50])[CH:44]=[CH:43][C:42]=1[C:12]1[CH:13]=[CH:14][CH:15]=[C:16]2[C:17]=1[CH:18]=[CH:19][C:10]([S:7]([N:6]([CH2:5][C:4]1[CH:34]=[CH:35][C:36]([O:38][CH3:39])=[CH:37][C:3]=1[O:2][CH3:1])[C:29]1[S:33][N:32]=[CH:31][N:30]=1)(=[O:9])=[O:8])=[CH:11]2

Komponenten

8

Edukt 3

HCID 10340Sodium CarbonateHCID 162440892-Bromo-1-iodo-4-(trifluoromethyl)benzeneHCID 86687343N-(2,4-dimethoxybenzyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-N-(1,2,4-thiadiazol-5-yl)naphthalene-2 sulfonamide2×

Produkt 1

HCID 866873425-(2-bromo-4-(trifluoromethyl)phenyl)-N-(2,4-dimethoxybenzyl)-N-(1,2,4-thiadiazol-5-yl)naphthalene-2-sulfonamideAusbeute 69,8 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 178418807HCID 178418807, VerbindungKatalysatorHCID 962WaterLösungsmittel2×HCID 6386tert-ButanolLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

A reaction vessel was charged with N-(2,4-dimethoxybenzyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-N-(1,2,4-thiadiazol-5-yl)naphthalene-2 sulfonamide (Intermediate E) (4 g, 7.05 mmol), 2-bromo-1-iodo-4-(trifluoromethyl)benzene (4.95 g, 14.10 mmol) and Pd(dppf)Cl2 DCM (1.151 g, 1.410 mmol). Dioxane (35.2 mL) and t-butanol (35.2 mL) were added to the reaction mixture followed by sodium carbonate in water (1.9 M) (11.13 mL, 21.15 mmol). The reaction vial was then swept with nitrogen and sealed with a screw cap. The resulting mixture was then heated to 50° C. and stirred for 4 hours. LC/MS indicated that the product was formed. The resulting mixture was transferred to a separatory funnel containing water and the aqueous layer was washed three times with DCM. The organic layers were combined, dried with MgSO4, filtered and concentrated to a dark oil which was purified by MPLC using 120 g silica gel column eluting with 0 to 70% EtOAc in heptane) to afford 5-(2-bromo-4-(trifluoromethyl)phenyl)-N-(2,4-dimethoxybenzyl)-N-(1,2,4-thiadiazol-5-yl)naphthalene-2-sulfonamide (3.27 g, 4.92 mmol) as a white solid. m/z (ESI) 685.8 [M+Na]+.

Aufarbeitung

  1. customsealed with a screw
  2. customcap
  3. customwas formed
  4. customThe resulting mixture was transferred to a separatory funnel
  5. washthe aqueous layer was washed three times with DCM
  6. dry with materialdried with MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated to a dark oil which
  9. customwas purified by MPLC
  10. washeluting with 0 to 70% EtOAc in heptane)

Quellen und Nachweise

ORD-Eintrag
ord-1ea78afd9bd748e99a1c5f0a0d66a9eb
Quelldatensatz
uspto-grants-2015_04
Patentnummer
US09012443B2

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