Reaction of 4, 6-dimethoxy-5-nitropyrimidine [I], with refluxing
pyridine, was discovered to yield the methylpyridinium salt of
1, 6-dihydr -4-hydroxy-1-methyl-5-nitro-6-oxopyrimidine [III]. Possible
use of I as a general N-methylating agent was explored. No
appreciable reaction occurred between I and refluxing excess n-butyl
alcohol. Similar reaction involving quinoline failed to yield an...
Aromatic Nitro Compounds. The n-values for the reduction of
the isomers of nitrophenol and nitrobenzoic acid and for several
other nitro compounds are determined in dimethylsulfoxide by controlled
potential coulometry. A procedure is given in which one
mole of nitro compound may be determined with errors of less than
one...
RNA secondary structure prediction maps a RNA sequence to its secondary structure (set of AU, CG, and GU pairs). It is an important problem in computational biology be-cause such structures reveals crucial information about the RNAs function, which is useful in many applications ranging from noncoding RNA detection to folding...
As part of a continuing study of sulfur containing non-aqueous
solvents, the present investigation was undertaken in an effort to obtain
a better understanding of the solvent sulfuryl chloride. The
primary object of the investigation involved a study of the rate of
radiochlorine exchange between sulfuryl and thionyl chloride in...
The purpose of this investigation was to determine the nature of the extractives from red alder bark in an effort to discover the materials which cause the red stain in red alder wood. Samples of bark and wood were obtained and successively extracted with hexane, benzene, ether, ethanol, and hot...