Phosphorus sulfide (P2S5) → HCID 9922428, compound

HRID 277877Notes

Reaction equation

HRID 277877 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[CH:9]=[C:10]3[C:15](=[CH:16][CH:17]=2)[NH:14][C:13](=O)[CH2:12][C:11]3([CH3:20])[CH3:19])[CH:5]=[CH:6][CH:7]=1.P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=[S:22]>N1C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[CH:9]=[C:10]3[C:15](=[CH:16][CH:17]=2)[NH:14][C:13](=[S:22])[CH2:12][C:11]3([CH3:20])[CH3:19])[CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 2

HCID 14817Phosphorus sulfide (P2S5)HCID 99656566-(3-chlorophenyl)-4,4-dimethyl-3,4-dihydroquinoline-2(1H)-one

Product 1

HCID 9922428HCID 9922428, compound

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

Prepared by heating under reflux overnight a mixture of 6-(3-chlorophenyl)-4,4-dimethyl-3,4-dihydroquinoline-2(1H)-one and an equal weight of phosphorus pentasulfide in pyridine was stirred. Removal of the pyridine in vacuo followed by treating the residue with 6N hydrochloric acid and recrystallization of the residue in ethanol gave the product as a yellow solid: mp. 197-198° C. 1H-NMR (DMSO-d6) δ 12.34 (s, 1H), 7.75 (m, 1H), 7.64 (m, 2H), 7.57 (dd, 1H J=9.3 and 2.1 Hz), 7.48 (t, 1H, J=7.7 Hz), 7.41 (m, 1H), 7.20 (d, 1H, J=8.3 Hz), 3.34 (s, 2H), 1.26 (s, 6H); MS (APCI(−)) m/z 300 [M−H]− Anal. Calc. For C17H16ClNS: C, 67.65, H, 5.34, N, 4.64. Found: C, 67.77, H, 5.57, N, 4.54.

Workup

  1. customPrepared
  2. temperatureby heating
  3. temperatureunder reflux overnight
  4. customRemoval of the pyridine in vacuo
  5. additionby treating the residue
  6. customwith 6N hydrochloric acid and recrystallization of the residue in ethanol

Sources & evidence

ORD record
ord-ce617dc2095f45899584d7dc05b2e904
Source dataset
uspto-grants-2002_03
Patent number
US06358948B1

Reaction notes

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