Diglyme as Solvent in the Gasometric Determination of Silanols by the Lithium Aluminum Hydride Method.

1963 ◽  
Vol 35 (9) ◽  
pp. 1308-1310 ◽  
Author(s):  
G. H. Barnes ◽  
N. E. Daughenbough
Keyword(s):  
Lithium Aluminum Hydride ◽  
Aluminum Hydride ◽  
Lithium Aluminum ◽  
Hydride Method

ChemInform Abstract: A Simple, Direct, and Reproducible Method for the Determination of Lithium Aluminum Hydride.

ChemInform ◽  
2010 ◽  
Vol 23 (20) ◽  
pp. no-no
Author(s):  
E. BROWN ◽  
A. LEZE ◽  
J. TOUET
Keyword(s):  
Lithium Aluminum Hydride ◽  
Aluminum Hydride ◽  
Lithium Aluminum ◽  
Reproducible Method

Determination of Lithium Aluminum Hydride in Solution

1948 ◽  
Vol 20 (4) ◽  
pp. 311-312 ◽  
Author(s):  
J. A. Krynitsky ◽  
J. E. Johnson ◽  
H. W. Carhart
Keyword(s):  
Lithium Aluminum Hydride ◽  
Aluminum Hydride ◽  
Lithium Aluminum

Lithium Aluminum Hydride as Reagent for Determination of Water

1950 ◽  
Vol 22 (2) ◽  
pp. 364-365 ◽  
Author(s):  
B. B. Baker ◽  
W. M. MacNevin
Keyword(s):  
Lithium Aluminum Hydride ◽  
Aluminum Hydride ◽  
Lithium Aluminum

Determination of the absolute stereochemistry of the fungal metabolite (R)-(−)-2-(4′-hydroxyphenyl)-2-hydroxyethanoic acid (pisolithin B)

1991 ◽  
Vol 69 (5) ◽  
pp. 772-778 ◽  
Author(s):  
Youla S. Tsantrizos ◽  
Kelvin K. Ogilvie
Keyword(s):  
Absolute Configuration ◽  
Lithium Aluminum Hydride ◽  
Optical Rotation ◽  
Aluminum Hydride ◽  
Lithium Aluminum ◽  
Fungal Metabolite ◽  
H Nmr ◽  
The Absolute ◽  
Absolute Stereochemistry

The antifungal antibiotic pisolithin B (p-hydroxymandelic acid, 2-(4′-hydroxyphenyl)-2-hydroxyethanoic acid, 1a) was shown to have the absolute (R) configuration. The stereochemistry was established via comparison of its optical rotation to that of its synthetic (R) and (S) enantiomers. The synthetic samples were prepared by the stereospecific reduction of the prochiral α-keto acid, p-hydroxybenzoylformic acid (2-(4′-hydroxyphenyl)-2-oxoethanoic acid, 2a), with (R) or (S)-2,2′-dihydroxy-1,1′-binaphthyl lithium aluminum hydride (BINAL-H). The absolute configuration and enantiomeric purity of both products were determined using the 1H NMR of their isobutyl esters in the presence of the chiral solvating agent (R)-(−)-2,2,2-trifluoro-1-(9-anthryl)ethanol. Key words: pisolithin B, p-hydroxymandelic acid, antifungal, absolute configuration.

Application of Lithium Aluminum Hydride to Determination of Hydroxyl Groups

1956 ◽  
Vol 28 (11) ◽  
pp. 1784-1787 ◽  
Author(s):  
G. A. Stenmark ◽  
F. T. Weiss
Keyword(s):  
Lithium Aluminum Hydride ◽  
Aluminum Hydride ◽  
Lithium Aluminum ◽  
Hydroxyl Groups

Vulcanization. Part III. Rapid Methods for Characterizing Rubber Networks

1964 ◽  
Vol 37 (3) ◽  
pp. 668-672 ◽  
Author(s):  
A. Y. Coran
Keyword(s):  
Thin Films ◽  
Crosslink Density ◽  
Lithium Aluminum Hydride ◽  
Aluminum Hydride ◽  
Lithium Aluminum ◽  
Chemical Bonds ◽  
Equilibrium Swelling ◽  
Before And After ◽  
The Difference

Abstract Equilibrium swelling determinations have long beea used as a means of estimating crosslink density, usually through the Flory-Rehner equation. Most of the reported methods for determining equilibrium swelling in rubber vulcanizates have required long periods of swelling before equilibrium was reached, due to the fact that thick specimens were used. The method presented here makes use of thin films as specimens for swelling, and equilibrium can be reached in periods of one to five minutes. In addition, the use of thin films makes possible the semiquantitative determination of the types of chemical bonds responsible for the crosslinks in rubber vulcanizates. In thin films the reaction of polysulfide crosslinks with lithium aluminum hydride (in benzene-tetrahydrofuran) is rapid. The determination of crosslink density after such a reduction is indicative of only those crosslinks which are not reducible by the hydride and the difference between crosslink densities before and after the reduction is a measure of the number of crosslinks of the polysulfidic type. The work described here has been limited to natural rubber gum stocks. The methods used are undoubtedly applicable to other types of stocks, though in some instances a certain amount of modification will be required.

Micro determination of active hydrogen in organic compounds by lithium-aluminum hydride

1954 ◽  
Vol 42 (1) ◽  
pp. 81-84 ◽  
Author(s):  
D. Subba Kao ◽  
G. D. Shah ◽  
V. S. Pansare
Keyword(s):  
Organic Compounds ◽  
Lithium Aluminum Hydride ◽  
Aluminum Hydride ◽  
Lithium Aluminum ◽  
Active Hydrogen
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