Zobrazeno 21 - 30
of 75
pro vyhledávání: '"35"'
Autor:
Johannes A. M. Hepperle, Brooks J. Culotta, Gerhard Erker, Allan Jay P. Cardenas, Stefan Grimme, Jeffrey L. Petersen, Roland Fröhlich, Armido Studer, Timothy H. Warren, Gerald Kehr, Constantin G. Daniliuc, Annika Stute, Birgitta Schirmer, Muhammad Sajid
Publikováno v:
Journal of the American Chemical Society
The intramolecular cyclohexylene-bridged P/B frustrated Lewis pair [Mes(2)P-C(6)H(10)-B(C(6)F(5))(2)] 1b reacts rapidly with NO to give the persistent FLP-NO aminoxyl radical 2b formed by P/B addition to the nitrogen atom of NO. This species was full
Autor:
Larry E. Overman, David W. C. MacMillan, Christopher C. Nawrat, Yuriy Slutskyy, Christopher R. Jamison
Publikováno v:
Journal of the American Chemical Society, vol 137, iss 35
Alkyl oxalates are new bench-stable alcohol-activating groups for radical generation under visible light photoredox conditions. Using these precursors, the first net redox-neutral coupling of tertiary and secondary alcohols with electron-deficient al
Publikováno v:
Journal of the American Chemical Society. 133:19684-19687
Most azobenzene-based photoswitches use UV light for photoisomerization. This can limit their application in biological systems, where UV light can trigger unwanted responses, including cellular apoptosis. We have found that substitution of all four
Publikováno v:
Journal of the American Chemical Society. 133:18420-18432
Escherichia coli ribonucleotide reductase is an α2β2 complex that catalyzes the conversion of nucleotides to deoxynucleotides using a diferric tyrosyl radical (Y(122)(•)) cofactor in β2 to initiate catalysis in α2. Each turnover requires revers
Publikováno v:
Journal of the American Chemical Society. 133:5413-5424
This work was undertaken with the aim to obtain direct evidence for the interrelationships between hetarylnitrenes, their ring-expanded cyclic carbodiimide isomers, and ring-opened nitrile ylides. Tetrazolo[1,5-a]quinoxaline 11T and tetrazolo[5.1-c]q
Autor:
Jordi Benet-Buchholz, Teodor Parella, T. Daniel P. Stack, Xavi Ribas, Albert Poater, Alicia Casitas, Carlos Calle, Antoni Llobet, Raül Xifra, A. Schweiger, Miquel Solà, George Mitrikas, Laura Gómez
Publikováno v:
© Journal of the American Chemical Society, 2010, vol. 132, núm. 35, p. 12299-12306
Articles publicats (D-Q)
DUGiDocs – Universitat de Girona
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Articles publicats (D-Q)
DUGiDocs – Universitat de Girona
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The present study provides mechanistic details of a mild aromatic C-H activation effected by a copper(II) center ligated in a triazamacrocylic ligand, affording equimolar amounts of a CuIII-aryl species and CuIspecies as reaction products. At low tem
Autor:
Mohammad R. Seyedsayamdost, Tomislav Argirević, JoAnne Stubbe, Ellen Catherine Minnihan, Marina Bennati
Publikováno v:
Journal of the American Chemical Society
E. coli ribonucleotide reductase (RNR) catalyzes the conversion of nucleotides to deoxynucleotides, a process that requires long-range radical transfer over 35 A from a tyrosyl radical (Y(122)*) within the beta2 subunit to a cysteine residue (C(439))
Publikováno v:
Journal of the American Chemical Society. 131:11606-11614
The photochemical decarbonylation of diphenylcyclopropenone (DPCP) to diphenylacetylene (DPA) proceeds with remarkable efficiency both in solution and in the crystalline solid state. It had been previously shown that excitation to the second electron
Publikováno v:
Journal of the American Chemical Society. 131:189-199
The synthesis of the methylfulvene- and phenylfulvene-annelated dihydropyrenes 10 and 22 from the cyclopentadiene-fused dihydropyrene 7 in 68% and 80% yields, respectively, are reported. However, the attempted formation of the parent fulvene-fused di
Autor:
Holger F. Bettinger, Holger Bornemann
Publikováno v:
Journal of the American Chemical Society. 128:11128-11134
A donor atom stabilized borylnitrene, 2-nitreno-1,3,2-benzodioxaborole 4c, is characterized by matrix isolation IR, UV, and ESR spectroscopy as well as multiconfiguration SCF and CI computations. UV irradiation (lambda = 254 nm) of the corresponding