Chiral Squaramide Catalyzed Asymmetric Spiroketalization toward Aromatic [6,5] Spiroketals.

DOI Number:

10.1021/acs.orglett.2c00074
Link to literature

Reaction Category:

Spirocyclization

Educt:

aromatic ketones

Product:

6,5 spiroketals

Catalyst:

3-[[(8α,9S)-6′-Methoxycinchonan-9-yl]amino]-4-[[(1R)-1-(1-naphthalenyl)ethyl]amino]-3-cyclobutene-1,2-dione

Cas No:

2041793-44-4

Associated Product from Buchler GmbH:

Quinine Base

Cas No:

130-95-0