204002-61-9Relevant academic research and scientific papers
Regioselective synthesis of 5-ylidenepyrrol-2(5H)-ones by reaction of transition metal-coordinated bis(imidoyl) chlorides with carbon nucleophiles
Wuckelt, Joerg,Doering, Manfred,Langer, Peter,Beckert, Rainer,Goerls, Helmar
, p. 365 - 372 (1999)
A regioselective transition metal mediated domino reaction of carbon nucleophiles with oxalic acid-bis(imidoyl)chlorides is reported. This reaction provides a convenient access to E-configured 5-ylidenepyrrol-2(5H)- ones. Without the presence of cobalt(II) or nickel(II) salts, open-chained products were obtained. The regioselective cyclization is controlled by the coordination of the nitrogen atoms of the 1,4-diazadiene system to the transition metal.
A new and convenient synthesis of α-tetramic acid amides via a cobalt(II)-mediated reaction cascade
Wuckelt, Joerg,Doering, Manfred,Langer, Peter,Goerls, Helmar,Beckert, Rainer
, p. 1135 - 1138 (2007/10/03)
A novel cobalt(II)-mediated domino reaction of carbon nucleophiles with 1a-d has been developed. The resulting cyclization regioselectively yields functionalized α-tetramic acid amides.
