Construction of pyrazole fused spiroketals by a (3+2) annulation reaction.
DOI Number:
10.1039/d2qo01001a
Reaction Category:
MOP ID:
MOP_0000561
Educt:
4-bromo-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, N-((E)-2-((Z)-4-methoxybenzylidene)benzofuran-3(2H)-ylidene)-4-methylbenzenesulfonamide
Product:
N-((2R,4'R,E)-4'-(4-methoxyphenyl)-3'-methyl-1'-phenyl-1',4'-dihydro-3H-spiro[benzofuran-2,5'-furo[2,3-c]pyrazol]-3-ylidene)-4-methylbenzenesulfonamide
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:
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