Nitroxide-induced beta-hydrogen atom abstraction and beta-elimination of rhodium porphyrin alkyls have been observed. Rhodium(II) porphyrin radical were proposed intermediates to form first and subsequently reacted via aliphatic carbon–carbon bond activation with alkyl substituted nitroxides to yield rhodium porphyrin alkyl complexes.
Direct evidence for the existence and the relative stability of gaseous ethylenebenzenium ions from a carbon-13 labeling study
作者:Simonetta Fornarini、Vincenzo Muraglia
DOI:10.1021/ja00185a014
日期:1989.2
Direct evidence is reported for the existence of unsubstituted ethylenebenzenium ions in the gas phase, based on sup 13}C-labeling of a methylene position in the precursor beta}-phenylethyl alcohol or chloride. The sup 13}C location in the products of the substitutionreaction induced by gaseous cations in the presence of methanol is consistent with the occurrence of ethylenebenzenium ions3 which
作者:Hoffmann, Reinhard W.、Dress, Ruprecht K.、Ruhland, Thomas、Wenzel, Andreas
DOI:——
日期:——
Thermal isomerization of benzocyclobutene
作者:Orville L. Chapman、Uh Po Eric Tsou、Jeffery W. Johnson
DOI:10.1021/ja00236a038
日期:1987.1
Palladium-Catalyzed Carbonylative Esterification of Primary Alcohols with Aryl Chlorides through Dehydroxymethylative C–C Bond Cleavage
作者:Hyo-Soon Park、Dong-Su Kim、Chul-Ho Jun
DOI:10.1021/cs501778q
日期:2015.1.2
Aryl chlorides in the presence of Pd/C catalyst and NaF react with primary alcohols to form esters, arenes, and alkanes. In this reaction, aryl chlorides act as both oxidants and coupling partners, whereas alcohols serve as both carbonyl sources and alkoxy components of the ester products