Trifluoroacetic acid → 1-Benzyl-3-(trifluoromethyl)pyrrolidine-3-carboxylic acid

反応式

[F:1][C:2]([F:9])([F:8])[C:3](=[CH2:7])[C:4]([OH:6])=[O:5].[CH2:10]([N:17]([CH2:21][Si](C)(C)C)[CH2:18]OC)[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.FC(F)(F)C(O)=O>C(Cl)Cl>[CH2:10]([N:17]1[CH2:18][CH2:7][C:3]([C:2]([F:9])([F:8])[F:1])([C:4]([OH:6])=[O:5])[CH2:21]1)[C:11]1[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=1

参加物

実験手順

A 2.48 g sample of 2-(trifluoromethyl)acrylic acid was dissolved in 40 mL of dry methylene chloride, and a solution of 4.75 g of N-benzyl-N-(methoxymethyl)-trimethylsilylmethylamine in 20 mL of dry methylene chloride was added dropwise under N2 at 0° C. To this mixture was added 2 mL of trifluoroacetic acid, and the mixture was stirred for 2 hours at room temperature. The product was removed by filtration, washed and dried to give the title product.