4748413 Structure for homogenizing the fundamental field in a nuclear magnetic resonance examination apparatus

1989 ◽  
Vol 7 (4) ◽  
pp. VI
Author(s):  
Georg Frese ◽  
Karl-Georg Ladwein
1977 ◽  
Vol 42 (14) ◽  
pp. 2411-2418 ◽  
Author(s):  
William Kitching ◽  
Maxwell Bullpitt ◽  
David Gartshore ◽  
William Adcock ◽  
T. C. Khor ◽  
...  

1976 ◽  
Vol 41 (18) ◽  
pp. 3036-3037 ◽  
Author(s):  
David. Doddrell ◽  
William. Kitching ◽  
William. Adcock ◽  
Park A. Wiseman

1989 ◽  
Vol 161 (2) ◽  
pp. 282-288 ◽  
Author(s):  
Elizabeth A. Noyszewski ◽  
Jyothi Raman ◽  
Suzanne R. Trupin ◽  
Barbara L. McFarlin ◽  
M. Joan Dawson

1963 ◽  
Vol 41 (2) ◽  
pp. 308-316 ◽  
Author(s):  
R. U. Lemieux ◽  
J. Howard

Reduction of 1,2-O-isopropylidene-3-O-benzyl-5-oxo-α-D-xylofuranose with lithium aluminum deuteride followed by removal of the isopropylidene and benzyl groups provided 5-deuterio-D-xylose. Nuclear magnetic resonance examination of the 5-deuterio-β-D-xylopyranose tetraacetate showed the isomer with the 5-carbon in the R-configuration (deuterium equatorial) to be present in 30% excess. The substance was degraded to 1-deuterioethanol, which possessed a dextrorotation of the magnitude expected and which necessarily possessed the R-configuration. This result confirmed the prediction made by Brewster (Tetrahedron Letters, 20, 23 (1959)).


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