Lawesson's reagent → 3-Benzyl-5-(3-chlorophenyl)-3-methyl-1,3-dihydro-2H-indole-2-thione

HRID 1370300Notes

Reaction equation

HRID 1370300 reaction equation
[CH2:1]([C:8]1([CH3:25])[C:16]2[C:11](=[CH:12][CH:13]=[C:14]([C:17]3[CH:22]=[CH:21][CH:20]=[C:19]([Cl:23])[CH:18]=3)[CH:15]=2)[NH:10][C:9]1=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:35])=CC=1>C1(C)C=CC=CC=1>[CH2:1]([C:8]1([CH3:25])[C:16]2[C:11](=[CH:12][CH:13]=[C:14]([C:17]3[CH:22]=[CH:21][CH:20]=[C:19]([Cl:23])[CH:18]=3)[CH:15]=2)[NH:10][C:9]1=[S:35])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 87949Lawesson's reagentHCID 219862743-Benzyl-5-(3-chloro-phenyl)-3-methyl-1,3-dihydro-indol-2-one

Product 1

HCID 100216483-Benzyl-5-(3-chlorophenyl)-3-methyl-1,3-dihydro-2H-indole-2-thioneYield 21%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

The title compound was prepared from 3-benzyl-5-(3-chloro-phenyl)-3-methyl-1,3-dihydro-indol-2-one (100 mg) and Lawesson's reagent (120 mg) in toluene (10 ml) at reflux, according to General Procedure A, to afford the title compound (0.022 g) as an off white solid: mp. 168-170° C.; 1H NMR (CDCl3) δ 9.23 (br s, 1H), 7.49 (s, 1H), 7.49-7.30 (m, 4H), 7.21 (s, 1H), 7.15-7.09 (m, 3H), 6.96-6.94 (m, 2H), 6.89 (d, 1H, J=8.0 Hz), 3.19 (dd, 2H, J=40.5 and 13 Hz) and 1.57 (s, 3H); MS (EI) m/z 363/365 [M]+.

Workup

  1. temperatureat reflux

Sources & evidence

ORD record
ord-bc235d4ccde34c2f804aed9d18858662
Source dataset
uspto-grants-2003_06
Patent number
US06583145B1

Reaction notes

Loading…