RhII-Catalyzed Thermal Cyclopropanations of a Phenyliodonium Bis(carbomethoxy)methylide with Alkenes and Dienes
作者:Georgia Georgakopoulou、Christos Kalogiros、Lazaros P. Hadjiarapoglou
DOI:10.1055/s-2001-18750
日期:——
Iodonium ylide 2, derived from dimethyl malonate, undergoes facile thermal cycloaddition with alkenes and dienes catalyzed with Rh2(OAc)4 to form the corresponding cyclopropanedicarboxylates and vinylcyclopropanedicarboxylates, respectively, in excellent yields.
Synthesis and Radical Polymerization of Various 2-Cyclopropylacrylates
作者:Armin de Meijere、Viktor Bagutski、Frank Zeuner、Urs Karl Fischer、Volker Rheinberger、Norbert Moszner
DOI:10.1002/ejoc.200400132
日期:2004.9
spectrometry and elemental analysis. The radical homopolymerizations of 1a−n were carried out with 2,2′-azabisisobutyronitrile (AIBN) as initiator in chlorobenzene at 65 °C. The highest polymer yields were obtained in the polymerizations of 1f and 1h or 1k and 1l, i.e. from monomers with an annelated five- or six-membered ring. In the case of 1h and 1k, both the polymer yields (99 and 98%, respectively) and