scholarly journals Low temperature hydrogenation of pyrolytic lignin over Ru/TiO2: 2D HSQC and 13C NMR study of reactants and products

2016 ◽  
Vol 18 (1) ◽  
pp. 271-281 ◽  
Author(s):  
Wen Chen ◽  
Daniel J. McClelland ◽  
Ali Azarpira ◽  
John Ralph ◽  
Zhongyang Luo ◽  
...  
Keyword(s):  
Low Temperature ◽  
13C Nmr ◽  
Nmr Study ◽  
Pyrolytic Lignin

The low temperature hydrogenation of pyrolytic lignin over Ru/TiO2 was studied and characterized with quantitative 13C and 2D 1H–13C HSQC NMR to determine the changes in carbon functionality.

A variable-temperature 13C NMR study of (η5-C5H5)2Mo2(CO)4 complexes of chiral alkynes derived from a terpene or a hormonal steroid: interconversion of diastereomers via exchange of terminal and semi-bridging carbonyls

1992 ◽  
Vol 70 (6) ◽  
pp. 1743-1749 ◽  
Author(s):  
Sylvie Tondu ◽  
Gérard Jaouen ◽  
Michael F. D'Agostino ◽  
Krisztina L. Malisza ◽  
Michael J. McGlinchey
Keyword(s):  
Low Temperature ◽  
13C Nmr ◽  
Time Scale ◽  
Variable Temperature ◽  
Carbonyl Ligand ◽  
Steroidal Hormone ◽  
Hormonal Steroid ◽  
Nmr Study ◽  
C Nmr

The reaction of (C5H5)2Mo2(CO)4 with the steroidal hormone 11β-(4-dimethylaminophenyl)-17β-hydroxy-17α-(1-propynyl)-estra-4,9-dien-3-one (RU 38486) or with propynylborneol yields in each case a chiral cluster that exhibits two cyclopentadienyl resonances in both the 1H and 13C NMR regimes. At low temperature the interconversion of diastereomers arising from the different orientations of the semi-bridging carbonyl ligand can be slowed on the NMR time scale. The barrier to diastereomer interchange has been determined for the terpenoid cluster and the mechanism of this process is discussed.

scholarly journals A 13C NMR study of methyl-branched hydrocarbon biosynthesis in the housefly.

1982 ◽  
Vol 257 (19) ◽  
pp. 11305-11314 ◽  
Author(s):  
J W Dillwith ◽  
J H Nelson ◽  
J G Pomonis ◽  
D R Nelson ◽  
G J Blomquist
Keyword(s):  
13C Nmr ◽  
Nmr Study ◽  
Hydrocarbon Biosynthesis

scholarly journals Triglyceride metabolism in 3T3-L1 cells. An in vivo 13C NMR study.

1992 ◽  
Vol 267 (16) ◽  
pp. 11168-11175
Author(s):  
M.R. Soma ◽  
M.P. Mims ◽  
M.V. Chari ◽  
D Rees ◽  
J.D. Morrisett
Keyword(s):  
13C Nmr ◽  
Triglyceride Metabolism ◽  
Nmr Study

13C NMR study of cellulose triacetate in the solid state

1987 ◽  
Vol 25 (3) ◽  
pp. 121-126 ◽  
Author(s):  
Mitsuo Takai ◽  
Keiji Fukuda ◽  
Jisuke Hayashi
Keyword(s):  
Solid State ◽  
13C Nmr ◽  
Cellulose Triacetate ◽  
Nmr Study

ChemInform Abstract: 13C NMR Study of Amino and Phosphino Substituted Acetylenes: δ(13C), JCC and JCP.

ChemInform ◽  
1989 ◽  
Vol 20 (32) ◽  
Author(s):  
K. KAMIENSKA-TRELA ◽  
Z. BIEDRZYCKA ◽  
R. MACHINEK ◽  
W. LUETTKE
Keyword(s):  
13C Nmr ◽  
Nmr Study ◽  
Δ 13C ◽  
Substituted Acetylenes
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