Solvent-Dependent Changes in the Triazolinedione-Alkene Ene Reaction Mechanism
作者:Georgios C. Vougioukalakis、Manolis M. Roubelakis、Mariza N. Alberti、Michael Orfanopoulos
DOI:10.1002/chem.200800920
日期:2008.10.29
The influence of the solvent on the triazolinedione-alkene enereactionmechanism has been investigated. Both inter- and intramolecularkineticisotopeeffects with tetramethylethylenes and 2,2,2-(trideuterio)methyl-7-methyl-2,6-octadiene-[D3]-1,1,1 provide, for the first time, strong evidence for changes in the mechanism of the reaction on going from non-protic to polar protic solvents. In non-protic
Intramolecular and Intermolecular Kinetic Isotope Effects (KIE) in the Nitrosoarene Ene Reaction: Experimental Evidence for Reversible Intermediate Formation
作者:Waldemar Adam、Oliver Krebs、Michael Orfanopoulos、Manolis Stratakis、Georgios C. Vougioukalakis
DOI:10.1021/jo0266240
日期:2003.3.1
The intramolecular and intermolecular kinetic isotopeeffects (KIE) have been determined for the nitrosoarene ene reaction with deuterium-stereolabeled 2,3-dimethyl-2-butenes (TME). trans-TME-d(6) (k(H)/k(D) = 3.0) and gem-TME-d(6) (k(H)/k(D) = 4.0) show large intramolecular primary isotopeeffects. In contrast, the intramolecular competition in cis-TME-d(6) (k(H)/k(D) = 1.5) and the intermolecular
Photoreduction of N-methylphthalimide with 2,3-dimethyl-2-butene. Evidence for reaction through an electron transfer generated ion pair
作者:Paul H. Mazzocchi、Lori Klingler
DOI:10.1021/ja00336a042
日期:1984.11
Les etudes de sensibilisation et de desexcitation montrent que le mecanisme de la reaction se deroule a partir de l'etat singulet du N-methylphtalimide
Les etudes de sensibilisation et de desexcitation montrent que le mecanisme de la reaction se deroule a partir de l'etat singulet du N-methylphtalimide
GRDINA M. B.; ORFANOPOULOS M.; STEPHENSON L. M., J. ORG. CHEM., 1979, 44, NO 16, 2936-2938
作者:GRDINA M. B.、 ORFANOPOULOS M.、 STEPHENSON L. M.
DOI:——
日期:——
SEYMOUR C. A.; GREENE F. D., J. AM. CHEM. SOC., 1980, 102, NO 20, 6384-6385