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

HRID 9322

Reaction equation

HRID 9322 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-6c1602386b2f47d482b05454e4845707
Source dataset
uspto-grants-2006_08
Patent number
US07091234B2

Linked notes

Loading…