作者:Sang Ick Lee、Se Yeoun Park、Ji Hoon Park、Il Gu Jung、Soo Young Choi、Young Keun Chung、Bun Yeoul Lee
DOI:10.1021/jo051685u
日期:2006.1.1
A rhodium complex of N-heterocyclic carbene (NHC) has been developed for intra- and intermolecular [4 + 2] and intramolecular [5 + 2] cycloadditionreactions. This is the first use of a transition-metal NHC complex in a Diels−Alder-type reaction. For the intramolecular [4 + 2] cycloadditionreactions, all the dienynes studied were converted to their corresponding cycloadducts in 91−99% yields within
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
RUTHENIUM SILYL-ARENE COMPLEX , AND METHOD FOR PRODUCTION THEREOF
申请人:Touge Taichiro
公开号:US20100298588A1
公开(公告)日:2010-11-25
The present invention is to provide a ruthenium complex having a novel arene moiety, which has improved solubility in various solvents, and a method for production thereof.
The present invention relates to a novel ruthenium complex having an arene moiety, which has a trisubstituted silyl group introduced to the arene moiety, and a method for production thereof.
An improved cobalt catalyst for homo Diels–Alder reactions of acyclic 1,3-dienes with alkynes
作者:Gerhard Hilt、François-Xavier du Mesnil
DOI:10.1016/s0040-4039(00)01163-1
日期:2000.8
cobalt(I)-catalysed homo Diels–Alder reaction of acyclic1,3-dienes and acetylene derivatives is described. The catalyst system consists of a mixture of a readily available CoBr2(dppe) complex, zinc iodide as a cocatalyst, and tetrabutylammonium borohydride as reducing agent. This system increases the reactivity of the cobalt(I) catalyst, so that acyclic dienes and acetylenes can be transformed to the
Regioselective Carbene Insertion on Polysubstituted Dihydroaromatic Compounds
作者:Gerhard Hilt、Fabrizio Galbiati
DOI:10.1021/ol060739z
日期:2006.5.1
[reaction: see text] The rhodium-catalyzed CH-insertion reaction of diazo ester derivatives into dihydroaromatic compounds was expanded to the application of various polysubstituted and functionalized 1,4-dienes generated from a cobalt-catalyzed Diels-Alder reaction. The highlyregioselective CH-insertion process produces after DDQ oxidation polysubstituted, polyfunctionalized aromatic compounds in