Zobrazeno 1 - 9
of 9
pro vyhledávání: '"35"'
Publikováno v:
Journal of the American Chemical Society. 131:9892-9893
For a direct quantitative investigation of the Csp(2)-Csp(2) reductive elimination rate within a catalytic cycle, a novel oxidative coupling system in the presence of a Ni catalyst and desyl chloride as the oxidant is devised. The reaction progress p
Autor:
Nina P. Gritsan, William L. Karney, Zhendong Zhu, Dean Tigelaar, Christopher M. Hadad, Matthew S. Platz, Anna D. Gudmundsdottir
Publikováno v:
Journal of the American Chemical Society. 123:1951-1962
Laser flash photolysis (LFP, Nd:YAG laser, 35 ps, 266 nm, 10 mJ or KrF excimer laser, 10 ns, 249 nm, 50 mJ) of 2-fluoro, 4-fluoro, 3,5-difluoro, 2,6-difluoro, and 2,3,4,5,6-pentafluorophenyl azides produces the corresponding singlet nitrenes. The sin
Autor:
R. W. Nagorski, John P. Richard
Publikováno v:
Journal of the American Chemical Society. 121:4763-4770
The lyoxide ion catalyzed intramolecular aldol addition reaction of 2-(2-oxopropyl)benzaldehyde (1) to give the aldol adduct 3 proceeds via essentially irreversible formation of the acetone-like enolate intermediate 2, because reprotonation of 2 by a
Publikováno v:
Journal of the American Chemical Society. 120:4430-4438
Laser flash photolysis (Nd:YAG laser, 355 nm, 35 mJ, 150 ps) of dimethyldiazirine and dimethyldiazirine-d6 produces dimethylcarbene (DMC) and dimethylcarbene-d6 (DMC-d6), respectively. The carbenes were trapped with pyridine to form ylides which abso
Publikováno v:
Journal of the American Chemical Society. 119:3853-3860
Recent kinetic measurements of the oxidation of linoleic acid by soybean lipoxygenase show that the thermal rate constants, kH ) 280 ((12) s -1 and kD ) 5.0 ((0.1) s -1 , are weakly temperature dependent within the temperature interval 30-50 °C. The
Publikováno v:
Journal of the American Chemical Society. 119:2795-2803
Precursors for the selective generation of C-2 glyceryl radicals were synthesized, and the chemical behavior of the corresponding radicals was investigated by ESR spectroscopy, product analysis, and kinetic measurements. It was found that cleavage of
Publikováno v:
Journal of the American Chemical Society. 115:7363-7373
Intrastrand electron and energy transfer between pendant sites in a derivatized 1:1 copolymer of styrene and p-(chloromethyl)styrene have been studied by laser flash photolysis. The polymer [p-PS-Ru[sub 22][sup II]Os[sub 5][sup II]](PF[sub 6])[sub 54
Autor:
James M. Mayer, Jasmine R. Bryant
Publikováno v:
Journal of the American Chemical Society. 125(34)
Anaerobic oxidations of 9,10-dihydroanthracene (DHA), xanthene, and fluorene by [(bpy)(2)(py)Ru(IV)O](2+) in acetonitrile solution give mixtures of products including oxygenated and non-oxygenated compounds. The products include those formed by organ
Autor:
Howard Rosman, Richard M. Noyes
Publikováno v:
Journal of the American Chemical Society. 80:2410-2415
The effect of intermittent light on the rate of a chain reaction involving iodine atoms has been used to measure the average life-time of photochemically produced iodine atoms between about 15 and 35 deg in hexane, carbon tetrachloride and hexachloro