Abstract
SOME forty substances are handled in this volume, of which one (sodium amide) is inorganic. Preparations of open-chain compounds include those of acetylacetone (by the boron trifluoride and sodium ethoxide methods), fumaryl chloride, tertiary butyl acetate (using acetyl chloride in presence of dry ether and magnesium), and the methyl esters of myristic and palmitic acids from the wax of the bayberry (Myrica cerifera). Among substances of biochemical importance, preparative details are given for the dl-forms of cysteic acid, serine, threonine, and valine; moreover, glucose is used as the basis of penta-acetyl-d-glucononitrile, d-arabinose, and 2,3,4,6-tetramethyl-d-glucose. Some of the most interesting heterocyclic items are 1,2,3-benztriazole, dehydro-acetic acid, 5,5-dimethylhydantoin, 5-nitroindazole, and picolinio acid hydrochloride. A useful selection of aromatic substances includes terephthaldehyde (from p-xylene), 2,2′-dinitrobiphenyl (from o-chloro-nitrobenzene and copper bronze), diphenylketene (from benzil monohydrazone), monoperphthalic acid, and mandelamide (from the acetone condensation product of mandelic acid, by ammonolysis with liquid ammonia in Dewar flasks). From the fact that the index covers volume 20 only, we infer hopefully that Collective Volume II, including annual volumes 10 to 19, is now in course of preparation.
Organic Syntheses
An Annual Publication of Satisfactory Methods for the Preparation of Organic Chemicals. Vol. 20. Pp. v + 113. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1940.) 10s. 6d. net.
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R., J. Organic Syntheses. Nature 146, 823 (1940). https://doi.org/10.1038/146823c0
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DOI: https://doi.org/10.1038/146823c0