2-Propanol, reaction products with ammonia, distn. residues → HCID 21082062, compound

HRID 347006Notes

Reaction equation

HRID 347006 reaction equation
[NH3:1].CC(O)C.Cl[C:7]([C:36]1[CH:41]=[CH:40][C:39]([Cl:42])=[CH:38][CH:37]=1)([C:28]1[N:32]([CH3:33])[C:31]([S:34][CH3:35])=[N:30][N:29]=1)[C:8]1[CH:9]=[C:10]2[C:15](=[CH:16][CH:17]=1)[N:14]1[N:18]=[N:19][N:20]=[C:13]1[N:12]=[C:11]2[C:21]1[CH:26]=[CH:25][CH:24]=[C:23]([Cl:27])[CH:22]=1>C1COCC1>[Cl:27][C:23]1[CH:22]=[C:21]([C:11]2[C:10]3[C:15](=[CH:16][CH:17]=[C:8]([C:7]([C:36]4[CH:37]=[CH:38][C:39]([Cl:42])=[CH:40][CH:41]=4)([C:28]4[N:32]([CH3:33])[C:31]([S:34][CH3:35])=[N:30][N:29]=4)[NH2:1])[CH:9]=3)[N:14]3[N:18]=[N:19][N:20]=[C:13]3[N:12]=2)[CH:26]=[CH:25][CH:24]=1

Participants

4

Reactant 2

HCID 183319422-Propanol, reaction products with ammonia, distn. residuesHCID 21082085HCID 21082085, compound

Product 1

HCID 21082062HCID 21082062, compoundYield 18%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

NH3/iPrOH saturated solution (40 ml) was added dropwise at 0° C. to a solution of 7-[chloro(4-chlorophenyl)[4-methyl-5-(methylthio)-4H-1,2,4triazol-3-yl)methyl]-5-(3-chlorophenyl)-tetrazolo[1,5-a)quinazoline (0.0036 mol) in THF (80 ml). The mixture was stirred from 0° C. to room temperature then at room temperature for 2 hours, poured out into ice water and extracted with EtOAc. The organic layer was separated, washed with water, dried (MgSO4), filtered and the solvent was evaporated. The residue (2 g) was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH/NH4OH; 98/2/0.1; 15–40 μm). The pure fractions were collected and the solvent was evaporated, yielding 0.35 g (18%) of 5-(3-chlorophenyl)-α-(4-chlorophenyl)-α-[4-methyl-5-(methylthio)-4H-1,2,4-triazol-3-yl]-tetrazolo[1,5-a]quinazoline-7-methanamine. A sample (0.15 g) was crystallized from CH3CN/diethyl ether. The precipitate was filtered off and dried, yielding 0.05 g of 5-(3-chlorophenyl)-α-(4-chlorophenyl)-α-[4methyl-5-(methylthio)-4H-1,2,4-triazol-3-yl]-tetrazolo[1,5-a]quinazoline-7-methanamine, mp. 150° C.

Workup

  1. extractionextracted with EtOAc
  2. customThe organic layer was separated
  3. washwashed with water
  4. dry with materialdried (MgSO4)
  5. filtrationfiltered
  6. customthe solvent was evaporated
  7. customThe residue (2 g) was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH/NH4OH; 98/2/0.1; 15–40 μm)
  8. customThe pure fractions were collected
  9. customthe solvent was evaporated

Sources & evidence

ORD record
ord-728695abbde64105847111e3aa0210e3
Source dataset
uspto-grants-2007_02
Patent number
US07173040B2

Reaction notes

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