Rhodium- or Copper-Catalysed CH-Insertion of Carbenoids into Dihydroaromatic Compounds and Acyclic 1,4-Dienes
作者:Gerhard Hilt、Fabrizio Galbiati
DOI:10.1055/s-2006-942512
日期:2006.11
A straightforward reaction sequence consisting of a cobalt-catalysed Diels-Alder reaction for the generation of dihydro-aromatic compounds and a rhodium- or alternatively a copper-catalysed CH-insertion reaction of carbenoids from diazo esters generates highly substituted benzene derivatives. When acyclic 1,4-dienes are synthesised by a cobalt-catalysed 1,4-hydrovinylation reaction, the rhodium-catalysed
An efficient cobalt catalyst for the neutral Diels–Alder reaction of acyclic 1,3-dienes with internal alkynes
作者:Gerhard Hilt、Tobias J Korn
DOI:10.1016/s0040-4039(01)00289-1
日期:2001.4
type reactions of internal alkynes with substituted 1,3-dienes is described. The regiochemistry for the dihydroaromatic products of reactions of isoprene with unsymmetrical reaction partners (2-alkynes and 1-trimethylsilyl-1-hexyne) is investigated. The dihydroaromatic reaction products are easily oxidised electrochemically to the corresponding functionalised durene and isodurenederivatives.