Catalytic formal cycloadditions between anhydrides and ketones: excellent enantio and diastereocontrol, controllable decarboxylation and the formation of adjacent quaternary stereocentres.
DOI Number:
10.1039/C6OB00089D
Reaction Category:
MOP ID:
MOP_0000562
Educt:
4-phenyl-2H-pyran-2,6(3H)-dione, trifluoromethylketones, trimethylsilyldiazomethane
Product:
substituted methyl 6-oxo-4-phenyl-2-(trifluoromethyl)-3,6-dihydro-2H-pyran-3-carboxylate
Catalyst:
N-[(8α,9S)-6′-methoxy-2′-phenylcinchonan-9-yl]-N′-(triphenylmethyl)-urea
Cas No:
1883711-99-6
Associated Product from Buchler GmbH:
Quinine Base
Cas No:
130-95-0