Asymmetric synthesis of isoxazole and trifluoromethyl-containing 3,2′-pyrrolidinyl dispirooxindoles via squaramide-catalysed [3 + 2] cycloaddition reactions.

DOI Number:

10.1039/D1OB02350K

Reaction Category:

Educt:

3-methyl-4-nitro-5-isatylidenyl-isoxazoles, N-2,2,2-trifluoroethylisatin ketimines

Product:

isoxazole and trifluoromethyl-containing 3,2′-pyrrolidinyl dispirooxindoles

Catalyst:

3-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-4-[[4-(trifluoromethyl)phenyl]amino]-3-cyclobutene-1,2-dione

Cas No:

1256245-85-8

Cas No:

130-95-0