1,1-BIS(PHENYLSULFONYL)ETHYLENE Chemische Eigenschaften,Einsatz,Produktion Methoden
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Verwenden
1,1-Bis(phenylsulfonyl)ethylene was used in the preparation of α,α-disubstituted alpha-amino acid derivatives.
Application
1,1-Bis(phenylsulfonyl)ethylene (1,1-BPSE) is a powerful Michael acceptor and dienophile; reagent for two-carbon homologation of ketones; synthetic equivalent of ethylene in Diels-Alder reactions and of ethylene 1,2-dipole in cycloadditions
[1].
synthetische
1,1-Bis(phenylsulfonyl)ethylene can be prepared via careful oxidation of the corresponding ketene
dithioacetal or via Mannich condensation of bis(phenylsulfonyl)methane with paraformaldehyde and a
secondary amine followed by elimination with acids
[2].
1,1-BIS(PHENYLSULFONYL)ETHYLENE Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
