Proton magnetic resonance spectra of platinum(II) complexes. II. cis- and trans- bis(dialkyl sulfide)dichloroplatinum(II) complexes. Mechanism of inversion at sulfur and vicinal platinum-proton couplings

1967 ◽  
Vol 89 (18) ◽  
pp. 4617-4621 ◽  
Author(s):  
Patricia C. Turley ◽  
Paul. Haake
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Dialkyl Sulfide ◽  
Cis And Trans ◽  
Magnetic Resonance Spectra

THE PROTON MAGNETIC RESONANCE SPECTRA OF CHRYSANTHEMUM ETHYL ESTER AND THE RELATED cis- AND trans-CHRYSANTHEMUMIC ACIDS

1962 ◽  
Vol 40 (5) ◽  
pp. 875-881 ◽  
Author(s):  
H. M. Hutton ◽  
T. Schaefer
Keyword(s):  
Magnetic Resonance ◽  
Ethyl Ester ◽  
Proton Magnetic Resonance ◽  
Acid Ethyl Ester ◽  
Proton Spin ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Cis And Trans Isomers ◽  
Cis And Trans ◽  
Magnetic Resonance Spectra

The high-resolution proton magnetic resonance spectra of a mixture of the cis and trans isomers of chrysanthemum monocarboxylic acid ethyl ester have been studied. The cis-chrysanthemumic and trans-chrysanthemumic acids spectra were obtained to facilitate the interpretation of the complex spectra of the ester. The percentage of the trans isomer in the chrysanthemum ester was measured to be 62.0 ± 1.1%. The cyclopropane proton spin coupling constants were found to be Jcis = 8.7 c.p.s. and Jtrans = 5.4 c.p.s., in reasonable agreement with Karplus' calculations of the dependence of coupling constants on the dihedral angle.

Cis and trans effects on the proton magnetic resonance spectra of cobaloximes

1974 ◽  
Vol 13 (7) ◽  
pp. 1564-1570 ◽  
Author(s):  
William C. Trogler ◽  
Robert Charles. Stewart ◽  
Leon A. Epps ◽  
Luigi G. Marzilli
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Cis And Trans ◽  
Magnetic Resonance Spectra

Synthesis of DL-threo- and DL-erythro-β-hydroxyisoleucine

1968 ◽  
Vol 46 (19) ◽  
pp. 3007-3012 ◽  
Author(s):  
T. A. Dobson ◽  
L. C. Vining
Keyword(s):  
Amino Acids ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Hydroxy Amino ◽  
Cis And Trans ◽  
Magnetic Resonance Spectra

DL-threo- and DL-erythro-β-Hydroxyisoleucine were prepared from cis- and trans-3-methylpent-2-enoic acids, respectively. The configuration of the erythro isomer was established from its synthesis by two independent routes. The diastereoisomers, and those of other β-hydroxy amino acids, can be distinguished by examination of their proton magnetic resonance spectra.

Proton magnetic resonance spectra, configuration, and conformation of 4-substituted prolines

1967 ◽  
Vol 20 (12) ◽  
pp. 2701 ◽  
Author(s):  
RH Andreatta ◽  
V Nair ◽  
AV Robertson
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Spectral Parameters ◽  
Cis And Trans ◽  
Configuration And Conformation ◽  
Magnetic Resonance Spectra

The proton magnetic resonance spectra of a series of 4-oxoprolines, and cis- and trans-4-substituted prolines, have been analysed. Correlations permitting assignment of configuration from the spectra are presented. The difficulty of deducing precise conformations from the spectral parameters is emphasized.

ChemInform Abstract: CIS AND TRANS EFFECTS ON THE PROTON MAGNETIC RESONANCE SPECTRA OF COBALOXIMES

1974 ◽  
Vol 5 (36) ◽  
pp. no-no
Author(s):  
WILLIAM C. TROGLER ◽  
ROBERT CHARLES STEWART ◽  
LEON A. EPPS ◽  
LUIGI G. MARZILLI
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Cis And Trans ◽  
Magnetic Resonance Spectra

The preparation of 2-Fluoro-5-nitrobenzonitrile and the proton magnetic resonance spectra of some compounds containing the N-(2-Cyano-4-nitrophenyl) group

1967 ◽  
Vol 20 (8) ◽  
pp. 1663 ◽  
Author(s):  
JFK Wilshire
Keyword(s):  
Amino Acids ◽  
Magnetic Resonance ◽  
Nitro Group ◽  
Proton Magnetic Resonance ◽  
Cyano Group ◽  
Aromatic Nucleus ◽  
Heteroaromatic Compounds ◽  
Magnetic Resonance Spectra

2-Fluoro-5-nitrobenzonitrile, an analogue of 1-fluoro-2,4- dinitrobenzene, in which the 2-nitro group has been replaced by a cyano group, has been prepared and made to react with several amines, amino acids, and NH-heteroaromatic compounds. The proton magnetic resonance spectra of some of the resultant N-(2-cyano-4-nitrophenyl) derivatives were compared with the spectra of the corresponding N-(2,4- dinitrophenyl) derivatives and furnish further evidence that the ortho nitro group of the latter derivatives is rotated out of the plane of the aromatic nucleus.

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