Mechanism of aromatic hydroxylation in a copper monooxygenase model system. 1,2-Methyl migrations and the NIH shift in copper chemistry
作者:M. Sarwar Nasir、Brett I. Cohen、Kenneth D. Karlin
DOI:10.1021/ja00033a024
日期:1992.3
The mechanism of aromatic hydroxylation for 2-methyl substituted analogues of copper complexes studied previously, namely [Cusub 2}(Mesub 2}XYL-CHsub 3})]sup 2+} (4) and [Cusub 2}(XYL-CHsub 3})]sup 2+} (5) are described in detail. Manometric Osub 2} uptake experiments and labeling studies were used to unravel the reaction pathway. The NIHshift mechanism is said to be operative in a copper
An increment system for deuterium isotope effects on13C chemical shifts of methylated benzenes
作者:Stefan Berger、Bernd W. K. Diehl
DOI:10.1002/mrc.1260241210
日期:1986.12
The complete series of all possible benzenes bearing one deuterium atom and one to five methyl groups was synthesized. The deuteriumisotopeeffects on the carbon chemicalshifts of the aromatic and aliphatic carbon atoms were measured and shown to obey an empirical increment system. The isotopeeffects over one bond correlate with the C,H spin coupling constants.
Electrophilic Hydrogen Isotope Substitutions. III. The Polyalkylbenzenes
作者:Walter M. Lauer、Geoffrey Stedman
DOI:10.1021/ja01556a066
日期:1958.12
The rates of deuteration of a number of polyalkylbenzenes in mixtures of deuterium oxide and trifluoroaceticacid have been measured. The rate of exchange closely parallels the basicity of the hydrocarbon and can be predicted from the partialratefactors for the deuteration of the monoalkylbenzenes. The results provide further evidence that steric effects arc small for deuteration in trifluoroacetic
Medium-sized cyclophanes. XIII. Highly selective cycloisomerization reaction of [2.2]metacyclophanes to 1,2,3,3a,4,5-hexahydropyrenes induced by iodine
作者:Takeo Sato、Kozaburo Nishiyama
DOI:10.1021/jo00986a014
日期:1972.10
Photoinduced Catalyst-Free Deuterodefunctionalization of Aryltriazenes with CDCl3
作者:Bin Wang、Yang Shao、Ziren Chen、Yu Xia、Fei Xue、Weiwei Jin、Shaofeng Wu、Yonghong Zhang、Chenjiang Liu