Triethylamine → rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-but-3-enyl)-pyrrolidine-2-carboxylic acid tert-butyl ester

HRID 1806858Notes

Reaction equation

HRID 1806858 reaction equation
[C:1]([O:5][C:6](=[O:16])[CH2:7]/[N:8]=[CH:9]/[CH2:10][C:11]([CH3:15])([CH3:14])[CH:12]=[CH2:13])([CH3:4])([CH3:3])[CH3:2].[Cl:17][C:18]1[C:19]([F:36])=[C:20](/[CH:24]=[C:25](/[C:28]2[CH:33]=[CH:32][C:31]([Cl:34])=[CH:30][C:29]=2[F:35])\[C:26]#[N:27])[CH:21]=[CH:22][CH:23]=1.C(N(CC)CC)C>ClCCl>[C:1]([O:5][C:6]([CH:7]1[CH:24]([C:20]2[CH:21]=[CH:22][CH:23]=[C:18]([Cl:17])[C:19]=2[F:36])[C:25]([C:28]2[CH:33]=[CH:32][C:31]([Cl:34])=[CH:30][C:29]=2[F:35])([C:26]#[N:27])[CH:9]([CH2:10][C:11]([CH3:15])([CH3:14])[CH:12]=[CH2:13])[NH:8]1)=[O:16])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 59249629(Z)-3-(3-Chloro-2-fluoro-phenyl)-2-(4-chloro-2-fluoro-phenyl)-acrylonitrileHCID 178443985HCID 178443985, compound

Product 1

HCID 67296738rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-but-3-enyl)-pyrrolidine-2-carboxylic acid tert-butyl esterYield 56%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

In a manner similar to the method described in Example 1c, [3,3-dimethyl-pent-4-en-(E)-ylideneamino]-acetic acid tert-butyl ester prepared in Example 80a (2.1 g, 9.3 mmol) was reacted with (Z)-3-(3-chloro-2-fluoro-phenyl)-2-(4-chloro-2-fluoro-phenyl)-acrylonitrile (2 g, 6.4 mmol) prepared in Example 52a, AgF (0.9 g, 7.1 mmol), and triethylamine (1.5 g, 15 mmol) in dichloromethane (150 mL) at room temperature for 18 h to give rac-(2R,3S,4R,5S)-3-(3-chloro-2-fluoro-phenyl)-4-(4-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-but-3-enyl)-pyrrolidine-2-carboxylic acid tert-butyl ester as a white foam (0.98 g, 56%).

Sources & evidence

ORD record
ord-814931df7d744ce38595b5f2dcaea691
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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