92447-84-2Relevant academic research and scientific papers
Reactions with Allylidenephosphoranes, IV. An Easy Synthesis of Cyclopentadienones (Cyclones)
Capuano, Lilly,Triesch, Thea,Schramm, Volker,Hiller, Wolfgang
, p. 2785 - 2789 (2007/10/02)
The Allylidenephosphoranes 2 react with α-ketocarbonyl chlorides 3 readily to afford the cyclopentadienones 4 and their Diels-Alder dimers 5.With an excess of 2a, 4a undergoes competitive Michael additions yielding a mixture of 4-allylidene-2-cyclopenteno
