Palladium(II)-catalyzed coupling of 2-carboxyethyl enol triflates with organostannanes.
作者:Ioannis N. Houpis
DOI:10.1016/s0040-4039(00)93572-x
日期:1991.11
Enol triflates 1–5, derived from the corresponding dicarbonyl compound, were coupled with tin reagents 6–8 using Pd(OAc)2 and PPh3 as the catalyst, at 7 mole %, in 56–91% yield.
Total Syntheses of the Actin-Binding Macrolides Latrunculin A, B, C, M, S and 16-<i>epi</i>-Latrunculin B
作者:Alois Fürstner、Dominic De Souza、Laurent Turet、Michaël D. B. Fenster、Liliana Parra-Rapado、Conny Wirtz、Richard Mynott、Christian W. Lehmann
DOI:10.1002/chem.200601135
日期:2007.1
Specifically, the macrocyclic skeletons of the targets were forged by ring-closing alkyne metathesis (RCAM) or enyne-yne metathesis of suitable diyne or enyne-yne precursors, respectively. This transformation was best achieved with the aid of [(tBu)(Me(2)C(6)H(3))N](3)Mo (37) as precatalyst activated in situ with CH(2)Cl(2), as previously described. This catalyst system is strictly chemoselective for
Synthesis of 1,4-dicarbonyl compounds and 4-keto pimelates by palladium-catalyzed carbonylation of siloxycyclopropanes
作者:Satoshi Aoki、Eiichi Nakamura
DOI:10.1016/s0040-4020(01)86434-6
日期:1991.1
Palladium-catalyzed reaction of a siloxycyclopropane with an aryl triflate under carbon monoxide pressure (10-20 atm) in HMPA and that with carbon monoxide in chloroform provides new synthetic routes to 1,4-dicarbonyl compounds and 4-keto pimelates, respectively. The reaction of a siloxycyclopropane with a vinyl triflate, on the other hand, gives an acyloxycyclopropane instead.
Concise and Practical Synthesis of Latrunculin A by Ring-Closing Enyne-Yne Metathesis
作者:Alois Fürstner、Laurent Turet
DOI:10.1002/anie.200500390
日期:2005.5.30
(<i>Z</i>
)-Enol <i>p</i>
-Tosylate Derived from Methyl Acetoacetate: A Useful Cross-Coupling Partner for the Synthesis of Methyl (<i>Z</i>
)-3-Phenyl (or Aryl)-2-Butenoate