Synthesis of cinchona alkaloid squaramide polymers as bifunctional chiral organocatalysts for the enantioselective michael addition of β-ketoesters to nitroolefins.

DOI Number:

10.1016/j.mcat.2017.06.010

Reaction Category:

RXNO ID:

RXNO_0000009

Educt:

methyl 2-oxocyclopentane-1-carboxylate, (E)-(2-nitrovinyl)benzene

Product:

methyl (R)-1-((S)-2-nitro-1-phenylethyl)-2-oxocyclopentane-1-carboxylate

Catalyst:

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

Cas No:

1204591-48-9

Cas No:

130-95-0