Lawesson's reagent → 6-chloro-4'-(3-chlorophenyl)-2'-(2,3-difluoro-6-isopropoxy-phenyl)-6'-thioxo spiro[3H-indole-3,3'-piperidine]-2(1H)-one

HRID 1728024Notes

Reaction equation

HRID 1728024 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:36])[C:10]3([CH:15]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([Cl:22])[CH:17]=4)[CH2:14][C:13](=O)[NH:12][CH:11]3[C:24]3[C:29]([O:30][CH:31]([CH3:33])[CH3:32])=[CH:28][CH:27]=[C:26]([F:34])[C:25]=3[F:35])[C:5]2=[CH:4][CH:3]=1.COC1C=CC(P2(=S)SP(=S)(C3C=CC(OC)=CC=3)[S:46]2)=CC=1>C1(C)C=CC=CC=1>[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:36])[C:10]3([CH:15]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([Cl:22])[CH:17]=4)[CH2:14][C:13](=[S:46])[NH:12][CH:11]3[C:24]3[C:29]([O:30][CH:31]([CH3:33])[CH3:32])=[CH:28][CH:27]=[C:26]([F:34])[C:25]=3[F:35])[C:5]2=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 87949Lawesson's reagentHCID 743703736-chloro-4'-(3-chlorophenyl)-2'-(2,3-difluoro-6-isopropoxy-phenyl) spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione

Product 1

HCID 743706156-chloro-4'-(3-chlorophenyl)-2'-(2,3-difluoro-6-isopropoxy-phenyl)-6'-thioxo spiro[3H-indole-3,3'-piperidine]-2(1H)-oneYield 78.3%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

In a manner similar to the method described in example 30, racemic (2′S,3R,4′S)-6-chloro-4′-(3-chlorophenyl)-2′-(2,3-difluoro-6-isopropoxy-phenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (0.45 g, 0.85 mmol) prepared in example 62d was reacted with 2,4-bis-(4-methoxyphenyl)-1,3-dithia-2,4-diphosphetane 2,4-disulfide (0.6 g, 1.8 mmol) in toluene to give racemic (2′S,3R,4′S)-6-chloro-4′-(3-chlorophenyl)-2′-(2,3-difluoro-6-isopropoxy-phenyl)-6′-thioxospiro[3H-indole-3,3′-piperidine]-2(1H)-one (Yield 0.36 g, 78.3%).

Sources & evidence

ORD record
ord-00b433632bf64649b38212d8647bfd36
Source dataset
uspto-grants-2009_02
Patent number
US07495007B2

Reaction notes

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