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

HRID 496676

Reaction equation

HRID 496676 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-5aff0a70a16245bf94faab442520f097
Source dataset
uspto-grants-2005_09
Patent number
US06946454B2

Linked notes

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