Enantioselective Synthesis of α‐Amino‐γ‐sulfonyl Phosphonates with a Tetrasubstituted Chiral α‐Carbon via Quinine‐Squaramide‐Catalyzed Michael Addition of Nitrophosphonates to Vinyl Sulfones.
DOI Number:
10.1002/adsc.201300224
Reaction Category:
RXNO ID:
RXNO_0000009
Educt:
vinylsulfones, diethyl (nitromethyl)phosphonates
Product:
(R)-substituted diethyl (1-nitro-3-(arylsulfonyl)propyl)phosphonate
Catalyst:
3-[[3,5-bis(trifluoromethyl)phenyl]amino]-4-[[(8α,9S)-6′-methoxycinchonan-9-yl]amino]-3-Cyclobutene-1,2-dione
Cas No:
1256245-84-7
Associated Product from Buchler GmbH:
Quinine Base
Cas No:
130-95-0