1,2-Dibromopropane → (Z)-4-methyl-3-(2-propan-2-ylphenyl)-N-[(Z)-[4-[1-[4-(trifluoromethoxy)phenyl]-1,2,4-triazol-3-yl]phenyl]methylideneamino]-1,3-thiazolidin-2-imine

HRID 1404861

Reaktionsgleichung

Reaktionsgleichung von HRID 1404861
[CH:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[NH:10][C:11]([NH:13]/[N:14]=[CH:15]/[C:16]1[CH:21]=[CH:20][C:19]([C:22]2[N:26]=[CH:25][N:24]([C:27]3[CH:32]=[CH:31][C:30]([O:33][C:34]([F:37])([F:36])[F:35])=[CH:29][CH:28]=3)[N:23]=2)=[CH:18][CH:17]=1)=[S:12])([CH3:3])[CH3:2].C(=O)([O-])[O-].[K+].[K+].Br[CH2:45][CH:46](Br)[CH3:47]>CC(=O)CC.C(Cl)Cl>[CH:1]([C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=1[N:10]1[CH:46]([CH3:47])[CH2:45][S:12]/[C:11]/1=[N:13]/[N:14]=[CH:15]\[C:16]1[CH:17]=[CH:18][C:19]([C:22]2[N:26]=[CH:25][N:24]([C:27]3[CH:28]=[CH:29][C:30]([O:33][C:34]([F:37])([F:35])[F:36])=[CH:31][CH:32]=3)[N:23]=2)=[CH:20][CH:21]=1)([CH3:3])[CH3:2]

Komponenten

6

Edukt 3

HCID 65531,2-DibromopropaneHCID 11430Potassium CarbonateHCID 885903141-(2-propan-2-ylphenyl)-3-[(E)-[4-[1-[4-(trifluoromethoxy)phenyl]-1,2,4-triazol-3-yl]phenyl]methylideneamino]thiourea

Produkt 1

HCID 68157141(Z)-4-methyl-3-(2-propan-2-ylphenyl)-N-[(Z)-[4-[1-[4-(trifluoromethoxy)phenyl]-1,2,4-triazol-3-yl]phenyl]methylideneamino]-1,3-thiazolidin-2-imine

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 6569Methyl Ethyl KetoneLösungsmittel

Reaktionsbedingungen

Temperatur
85 °C

Versuchsvorschrift

To (E)-N-(2-isopropylphenyl)-2-(4-(1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazol-3-yl)benzylidene)hydrazinecarbothioamide (300 mg, 0.572 mmol) and potassium carbonate (316 mg, 2.29 mmol) in butanone (4 ml) was added 1,2-dibromopropane (0.072 ml, 0.686 mmol). The reaction was heated to 85° C. overnight. The reaction was determined to be complete by LCMS. The reaction mixture was diluted with DCM and washed with water. The aqueous layer was extracted with DCM. The organic layers were poured through a phase separator and concentrated. Purification by flash column chromatography provided a yellow solid. The solid was recrystallized from MeOH. The solid was filtered, washed with MeOH, and dried to provide the title compound as a yellow solid which was dissolved in acetone and concentrated (3×). The light yellow solid was collected and dried under to provide the title compound as a 1:1 mixture of rotational diastereoisomers (75.1 mg, 0.133 mmol, 23%): mp 201-204° C.; 1H NMR of mixture (400 MHz, CDCl3) δ 8.56 (s, 2H), 8.18 (dd, J=10.8, 7.4 Hz, 6H), 7.84-7.73 (m, 8H), 7.45-7.30 (m, 8H), 7.30-7.23 (m, 2H), 7.20 (d, J=6.7 Hz, 1H), 7.12 (dd, J=7.8, 1.2 Hz, 1H), 4.43-4.33 (m, 1H), 4.16 (dd, J=12.6, 6.3 Hz, 1H), 3.48 (dt, J=13.3, 6.7 Hz, 1H), 3.37 (dd, J=10.8, 6.2 Hz, 1H), 3.24 (dt, J=13.7, 6.9 Hz, 1H), 3.08-2.92 (m, 3H), 1.33-1.16 (m, 18H); ESIMS m/z 566 (M+H).

Aufarbeitung

  1. washwashed with water
  2. extractionThe aqueous layer was extracted with DCM
  3. additionThe organic layers were poured through a phase separator
  4. concentrationconcentrated
  5. customPurification by flash column chromatography
  6. customprovided a yellow solid
  7. customThe solid was recrystallized from MeOH
  8. filtrationThe solid was filtered
  9. washwashed with MeOH
  10. customdried

Quellen und Nachweise

ORD-Eintrag
ord-3b9f1fe461f1416eb84492357f61e399
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08916183B2

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