Z-6-bromo-3-(3-chloro-benzylidene)-1,3-dihydro-indol-2-one → racemic (2'R,3R,4'S)-6-bromo-4'-(3-chlorophenyl)-2,3-dihydro-2'-(5-chloro-2-methylphenyl)-2,6'-dioxospiro[indole-3,3'-piperidine]

HRID 1728092Notes

Reaction equation

HRID 1728092 reaction equation
[Br:1][C:2]1[CH:10]=[C:9]2[C:5](/[C:6](=[CH:12]/[C:13]3[CH:18]=[CH:17][CH:16]=[C:15]([Cl:19])[CH:14]=3)/[C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1.[Cl:20][C:21]1[CH:22]=[CH:23][C:24]([CH3:36])=[C:25]([CH:27]=[N:28][C:29]([O:31][Si](C)(C)C)=[CH2:30])[CH:26]=1>C1(C)C=CC=CC=1>[Br:1][C:2]1[CH:10]=[C:9]2[NH:8][C:7](=[O:11])[C:6]3([CH:12]([C:13]4[CH:18]=[CH:17][CH:16]=[C:15]([Cl:19])[CH:14]=4)[CH2:31][C:29](=[O:30])[NH:28][CH:27]3[C:25]3[CH:26]=[C:21]([Cl:20])[CH:22]=[CH:23][C:24]=3[CH3:36])[C:5]2=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 68615044Z-6-bromo-3-(3-chloro-benzylidene)-1,3-dihydro-indol-2-oneHCID 702039431-(5-Chloro-2-methylphenyl)-3-trimethylsilyoxy-2-aza-1,3-butadiene

Product 1

HCID 74370697racemic (2'R,3R,4'S)-6-bromo-4'-(3-chlorophenyl)-2,3-dihydro-2'-(5-chloro-2-methylphenyl)-2,6'-dioxospiro[indole-3,3'-piperidine]

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

In a manner similar to the method described in example 157b, E/Z-6-bromo-3-(3-chloro-benzylidene)-2-oxo-2,3-dihydro-indole (0.4 g, 1.10 mmol) prepared in example 157a was reacted with 1-(5-chloro-2-methylphenyl)-3-trimethylsilyoxy-2-aza-1,3-butadiene prepared in example 160a, in toluene to give racemic (2′R,3R,4′S)-6-bromo-4′-(3-chlorophenyl)-2,3-dihydro-2′-(5-chloro-2-methylphenyl)-2,6′-dioxospiro[indole-3,3′-piperidine] as a white solid. (Yield 0.3 g, 51%).

Sources & evidence

ORD record
ord-c0df3baa78e049aca6ee81c3f61232f7
Source dataset
uspto-grants-2009_02
Patent number
US07495007B2

Reaction notes

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