Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Ronald M. Jarret"'
Autor:
Janet L. Shaw, Melissa Precopio, Ronald M. Jarret, Kerianne Crandall, Richard S. Herrick, Christopher J. Ziegler
Publikováno v:
Journal of Organometallic Chemistry. 693:619-624
The one-pot reactions of ferrocenecarboxaldehyde, W(CO)4(pip)2 (pip = piperidine) and either 2-(aminomethyl)pyridine or 2-(2-aminoethyl)pyridine lead to clean formation of pyridine imine products W(CO)4(η2-NC5H4CH NCH2C5H4FeCp) (1) and W(CO)4(η2-NC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2252845bcb1c184af36eefa108b610f
https://doi.org/10.1016/j.jorganchem.2007.11.046
https://doi.org/10.1016/j.jorganchem.2007.11.046
Autor:
Eric L. DeLeon, Kenneth B. Wiberg, Jack D. Hammer, William F. Bailey, Henry Castejon, Ronald M. Jarret
Publikováno v:
The Journal of Organic Chemistry. 64:2085-2095
The conformational enthalpy (DeltaH degrees ), entropy (DeltaS degrees ), and free energy (-DeltaG degrees ) of methyl- (1), ethyl- (2), and isopropylcyclohexane (3) have been reinvestigated both experimentally and computationally. A novel experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f39027f3c2c96cc3ecdd2a9fc1380f75
https://doi.org/10.1021/jo990056f
https://doi.org/10.1021/jo990056f
Autor:
Dean R. Dragoli, Richard S. Herrick, Lisa C. Thornton, Timothy P. Curran, Ronald M. Jarret, Rebecca A. Slate, Maryellen B. Flaherty, Susan E. Lindyberg
Publikováno v:
Tetrahedron Letters. 37:5289-5292
Two bis(amino acid) derivatives of 1,1′-ferrocenedicarboxylic acid were characterized by IR, 1 H NMR and 13 C NMR spectroscopy. Each was found to adopt an ordered, intramolecularly hydrogen bonded conformation in CHCl 3 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a9acb43f4c316a64ae91362dde908fa
https://doi.org/10.1016/0040-4039(96)01094-5
https://doi.org/10.1016/0040-4039(96)01094-5
Autor:
M. Fortin, T. Morrison, J. Connolly, K. Pothier, M. Dinztner, M. Biondi, Ronald M. Jarret, Leonarda Cusumano
Publikováno v:
Microchemical Journal. 47:187-192
Isotopic enrichment or a multipulse NMR experiment (INADEQUATE) was utilized to measure the 13 C- 13 C coupling constants for a collection of carboxylate esters. Significantly different values were measured for the C 2 C 3 bond of endo - and exo -
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18862512bf63dcfb02aa2c48edfe434c
https://doi.org/10.1006/mchj.1993.1032
https://doi.org/10.1006/mchj.1993.1032
Autor:
Richard S. Herrick, R. R. Jun. Duff, J. L. Hubbard, M. S. George, Ronald M. Jarret, F. H. D'aulnois
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26704e561048990d01ee048a4b348687
https://doi.org/10.1002/chin.199201091
https://doi.org/10.1002/chin.199201091
Publikováno v:
International Journal of Biological Macromolecules. 14:29-32
Three xylan fractions, obtained by stepwise precipitation with ethanol, were analysed by 75-MHz 13C-n.m.r. spectroscopy. Diad frequencies, determined from the C-2 resonances, show that the (1----3)-linkages are interspersed throughout the chain rathe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb9d6ac6c4b2ff04ed7108bd2ed04c28
https://doi.org/10.1016/s0141-8130(05)80016-9
https://doi.org/10.1016/s0141-8130(05)80016-9
Autor:
Richard S. Herrick, Ronald R. Duff, Felicitee Henry. D'Aulnois, John L. Hubbard, Ronald M. Jarret, Melinda S. George
Publikováno v:
Inorganic Chemistry. 30:3711-3718
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42e15ff762650028879c4563efa6c239
https://doi.org/10.1021/ic00019a029
https://doi.org/10.1021/ic00019a029
Autor:
Ronald M. Jarret, Leonarda Cusumano
Publikováno v:
Tetrahedron Letters. 31:171-174
The C1–C2 coupling constant in [1.1.1]propellane is measured to be 9.9 ± .1 Hz. The CH bond is sp 2.1 and the CCH 2 bond is estimated to be sp 8.6 -sp 4.8 . The remaining orbital at each bridgehead carbon is sp 0.5 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2144c3cb7f5df979d1233c63b8a5e2ee
https://doi.org/10.1016/s0040-4039(00)94362-4
https://doi.org/10.1016/s0040-4039(00)94362-4
Publikováno v:
ChemInform. 37
The conformational preference for 1,2-difluorocyclohexane has been studied experimentally via NMR spectroscopy and computationally using CCSD/6-311+G(2df,p). The results confirm our previous conclusions that the diaxial conformer of trans-1,2-difluor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec597c8694be06b669f8292e36ed7aef
https://doi.org/10.1002/chin.200603026
https://doi.org/10.1002/chin.200603026
Publikováno v:
Microchemical Journal. 56:19-21
Exchange of amide protons with deuterium results in changes of13C chemical shifts for carbon atoms near the site of substitution (CH—N and N—C=O). There is a measurable decrease in the isotopic shifts of CH—N for cycloalkylacetamides as ring si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e34fb96647736b6bb9b6a9962d40a214
https://doi.org/10.1006/mchj.1996.1423
https://doi.org/10.1006/mchj.1996.1423