Carbon-13 nuclear magnetic resonance spectra of branched-chain sugars. Configurational assignment of the branching carbon atom of methyl branched-chain sugars

1974 ◽  
Vol 39 (26) ◽  
pp. 3847-3850 ◽  
Author(s):  
Momcilo Miljkovic ◽  
Miodrag Gligorijevic ◽  
Toshio Satoh ◽  
Djordje Glisin ◽  
Ross G. Pitcher
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Carbon Atom ◽  
Configurational Assignment ◽  
Nuclear Magnetic Resonance Spectra ◽  
Branched Chain ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

Carbon-13 Nuclear Magnetic Resonance Spectra of Some Dendroketose and Other Furanose Derivatives

1975 ◽  
Vol 53 (18) ◽  
pp. 2748-2754 ◽  
Author(s):  
Dolatrai M. Vyas ◽  
Harold C. Jarrell ◽  
Walter A. Szarek
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Carbon Atom ◽  
Nuclear Magnetic Resonance Spectra ◽  
Branched Chain ◽  
Derivatives Of ◽  
Anomeric Center ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The carbon-13 n.m.r. spectra of derivatives of the branched-chain sugars apiose and dendroketose, and of other furanose sugars, are reported. The study has permitted assignment of the configuration at the branching carbon atom and at the anomeric center in the dendroketose derivatives.

Nuclear magnetic resonance spectra of some fluorinated organotin compounds

1967 ◽  
Vol 45 (10) ◽  
pp. 1073-1078 ◽  
Author(s):  
H. C. Clark ◽  
N. Cyr ◽  
J. H. Tsai
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Carbon Atom ◽  
Organotin Compounds ◽  
Nuclear Magnetic Resonance Spectra ◽  
The Asymmetry ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The unusual features of the proton and 19F nuclear magnetic resonance spectra of (CH3)3SnCF2CFHCF3, arising from the asymmetry about the β-carbon atom, are discussed in terms of the molecular stereochemistry. Data for (CH3)3SnCF2CF(CF3)Sn(CH3)3, (CH3)3SnCF2CF2H, and (CH3)3SnCF2(CF2)2CF2H are also presented.

Conformation and configuration of some α,β-unsaturated carbonyl compounds from their nuclear magnetic resonance spectra

1969 ◽  
Vol 47 (17) ◽  
pp. 3137-3146 ◽  
Author(s):  
W. M. Phillips ◽  
D. J. Currie
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Carbon Atom ◽  
Functional Groups ◽  
Carbonyl Compounds ◽  
Chemical Shifts ◽  
Nuclear Magnetic Resonance Spectra ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

Nuclear magnetic resonance spectra were recorded for 95 styrenes with two functional groups (A and B) on the β-carbon atom where A, B are COCH3, COCH3; COCH3, CO2C2H5; CO2C2H5, COCH3; CO2C2H5, CO2C2H5; CO2C2H5, CN; and CO2C2H5, H. The chemical shifts of the ethylenic hydrogen and the hydrogens of the functional A and B groups were examined in detail to determine the effects of ring substituents. The configuration of the unsymmetrical styrenes and the conformation of the A and B groups as deduced from the spectra are discussed.

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