Hydrochloric Acid → HCID 14209557, compound

HRID 2352212Notes

Reaction equation

HRID 2352212 reaction equation
[N:1]1[CH:6]=[CH:5][C:4]([CH2:7][C:8]2([CH2:24][C:25]3[CH:30]=[CH:29][N:28]=[CH:27][CH:26]=3)[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[C:9]2=[O:23])=[CH:3][CH:2]=1.C1(N)C(F)=C(F)C(F)=C(N)C=1F.[ClH:43].Cl.Cl.C(O)(C)C>C(O)C.CC(C)=O>[ClH:43].[ClH:43].[N:1]1[CH:2]=[CH:3][C:4]([CH2:7][C:8]2([CH2:24][C:25]3[CH:26]=[CH:27][N:28]=[CH:29][CH:30]=3)[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:10]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[C:9]2=[O:23])=[CH:5][CH:6]=1

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 3776IsopropanolHCID 39321,3-Dihydro-1-phenyl-3,3-bis(4-pyridinylmethyl)-2H-Indol-2-oneHCID 149026Tetrafluoro-m-phenylenediamine dihydrochloride

Product 1

HCID 14209557HCID 14209557, compoundYield 84%

Reagents, catalysts & solvents 2

HCID 180AcetoneSolventHCID 702EthanolSolvent

Procedure

3,3-Bis(4-pyridylmethyl)-1-phenylindolin-2-one (19 g) was converted to the dihydrochloride by treatment with 40 ml 25% hydrochloric acid in ethanol. To the mixture was added 50 ml isopropanol and the solution was heated to boiling. Boiling acetone was added until thick needles just started to form (total volume of solvents: 200-250 ml). The solution was allowed to cool to room temperature, then allowed to stand overnight at 0°. The solid was filtered and washed with cold isopropanol to yield 19.5 g (84%) of the title compound; m.p. 257°-8°. (Note: degree of drying has an effect on m.p. of the dihydrochloride; very slowly increasing the temperature of the melting point apparatus gives a melting point of 275°-276°). A second crop was obtained by evaporating the filtrate, dissolving the residue in isopropanol and adding approximately an equal volume of acetone; the mixture was allowed to sit overnight at room temperature, and then 6 hours at 0° C. to yield an additional 2.8 g, m.p. 252°-253°. Recrystallization yielded 2.4 g, of the second crop: m.p. 257°-258° C. The total dihydrochloride yield was 21.9 g (94%).

Workup

  1. temperaturethe solution was heated to boiling
  2. customto form (total volume of solvents: 200-250 ml)
  3. filtrationThe solid was filtered
  4. washwashed with cold isopropanol

Sources & evidence

ORD record
ord-7e65cb221ca04239899b364ef65dfac8
Source dataset
uspto-grants-1989_10
Patent number
US04876259

Reaction notes

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