Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Jacob R. Stepherson"'
Autor:
A. Timothy Royappa, Jacob R. Stepherson, Oliver D. Vu, Andrew D. Royappa, Charlotte L. Stern, Peter Müller
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 10, Pp m544-m544 (2013)
In the title compound, [Cu(CH3CN)4](C2HO4)·0.5C2H2O4·0.5CH3CN, the CuI ion is coordinated by the N atoms of four acetonitrile ligands in a slightly distorted tetrahedral environment. The oxalic acid molecule lies across an inversion center. The ace
Externí odkaz:
https://doaj.org/article/659a52a2cca94cc3a5e4ab8fda459ffb
Autor:
Joshua A. Malone, Satish Chandra Philkhana, Jacob R. Stepherson, Fatimat O. Badmus, Frank R. Fronczek, Rendy Kartika
Publikováno v:
Organic letters. 24(26)
We describe a new synthetic reaction that generates all-carbon bis-quaternary centers at the opposing side of α-carbons in cyclohexanone with four different substituents in a controlled manner. Catalyzed by Cu(MeCN)
Autor:
Gilles André, Dylan C. Kelly, Robert J. Papoular, A. Timothy Royappa, Banghao Chen, Nikolaos Kourkoumelis, Allegra M. Pekarek, Deke M. Blum, Andrew D. Mercer, Matthew R. Suchomel, Andrew D. Royappa, Oliver D. Vu, Jacob R. Stepherson, Arnold L. Rheingold, Raphael F. Moral, James A. Golen, Tien Q. Duong
Publikováno v:
Polyhedron. 119:563-574
A series of dinuclear copper(I) oxalate complexes was synthesized by the direct acid-base reaction of Cu2O with oxalic acid in ethanol with a ligand, or in neat ligand. The complexes incorporated a variety of ligands L (L = triphenylphosphine, 1,2-bi
Publikováno v:
Synlett. 27:320-330
We recently reported a new synthetic method in our laboratory concerning the control of regioselectivity in the addition of nucleophiles, such as indoles, to unsymmetrical oxyallyl cations. These reactive intermediates were readily generated upon ion
Publikováno v:
Journal of Chemical Education. 92:762-766
Measuring the heat capacity ratios, γ, of gases either through adiabatic expansion or sound velocity is a well-established physical chemistry experiment. The most accurate experiments depend on an exact determination of sound origin, which necessita
Autor:
Rendy Kartika, Jeffrey L. Henry, Frank R. Fronczek, Jacob R. Stepherson, Thomas H. Tugwell, Caitlan E. Ayala
Publikováno v:
Organic letters. 18(12)
We report a new strategy toward the synthesis of highly functionalized carbazoles via 2-(silyloxy)pentadienyl cation intermediates, which were generated upon ionization of vinyl-substituted α-hydroxy silyl enol ethers under Bronsted acid catalysis.
Autor:
Frank R. Fronczek, Rendy Kartika, Caitlan E. Ayala, Nitin S. Dange, Jacob R. Stepherson, Jeffrey L. Henry
Publikováno v:
ChemInform. 47
This report describes Bronsted acid catalyzed de novo synthesis of silyldienol ethers bearing tetrasubstituted double bonds via an intermediacy of 2-silyloxypentadienyl cations. The reactivity of these novel cationic intermediates could be modulated
Publikováno v:
ChemInform. 47
Publikováno v:
ChemInform. 47
Herein we describe a new method, enabling the synthesis of highly functionalized 1,4-diketones that are readily differentiated as monosilylenol ethers under Bronsted acid catalysis. This synthetically useful chemistry exploited an intermediacy of uns
Autor:
Jacob R. Stepherson, Jeffrey L. Henry, Nitin S. Dange, Rendy Kartika, Caitlan E. Ayala, Frank R. Fronczek
Publikováno v:
Organic letters. 18(5)
This report describes Bronsted acid catalyzed de novo synthesis of silyldienol ethers bearing tetrasubstituted double bonds via an intermediacy of 2-silyloxypentadienyl cations. The reactivity of these novel cationic intermediates could be modulated