50639-01-5Relevant academic research and scientific papers
A novel synthesis of γ,δ-unsaturated aldehydes from α-formyl-γ-lactones
Snowden, Roger L.,Brauchli, Robert,Linder, Simon
experimental part, p. 1216 - 1225 (2011/09/16)
A preparatively useful one-step transformation of γ,γ- disubstituted α-formyl-γ-lactones into trisubstituted γ,δ-unsaturated aldehydes is described, by means of catalytic amounts of either AcOH or AcOEt in the vapor phase over a glass support. A mechanistic rationale is proposed. Copyright
γ,δ- and δ,ε-unsaturated aldehydes from γ- and δ-lactones in one step: Preliminary communication
Giersch, Wolfgang,Naef, Ferdinand
, p. 1697 - 1703 (2007/10/03)
A one-step transformation of δ- and δ-(spiro)lactones into δ,δ- and δ,ε-unsaturated aldehydes with an excess of formic acid in the vapor phase over a supported manganese catalyst is described for the first time. The scope and limitations of this new reaction are shown with different lactones as substrate, and a mechanistic rationale is proposed.
Spiro- and bridged-ring forming electrophile induced -> grime -> nitrone cycloaddition cascades. Multiplication of chirality
Dondas, H. Ali,Grigg, Ronald,Frampton, Christopher S.
, p. 5719 - 5722 (2007/10/03)
Electrophile induced 6-exo-trig spirocyclisation of oximes onto 5-, 6- or 7-membered cycloalkenes occurs stereo- and regio- specifically in good yield. Bridged - ring forming cyclisations creating bicycle-[3.3.1]- and bicyclo-[3.2.1]-ring systems also occur in good yield. Chiral bridged-ring systems have been synthesised, via the latter processes, that involve multiplication of chiral centres from one to six and seven in one pot reactions.
CYCLOCARBONYLATION OF UNSATURATED TOSYLATES AS A METHOD OF CYCLANONE SYNTHESIS
McMurry, John E.,Andrus, Alex
, p. 4687 - 4690 (2007/10/02)
A study has been made to determine the scope of the cyclocarbonylation reaction of olefinic tosylates with Na2Fe(CO)4.
