The unique reaction between 4, 6-dimethoxy-5-nitropyrimidine
and methylhydrazine was investigated. The reaction product was
identified as 4-hydrazino-6-hydroxypyrimidine from (a) spectral
data, (b) by direct synthesis of the product via 4-chloro-6-hydroxypyrimidine
and hydrazine, and (c) by conversion of the product to
the known 4-amino-6-hydroxypyrimidine using Raney nickel. The
product was not...
A preparative method for a new compound n-octadecylcycloazadi-boron (CAB), in high yield has been developed. CAB was isolated as
an intermediate in the octadecylamine-catalyzed hydrolysis of pentaborane.
The most probable structure of CAB can be regarded as a
derivative of the three membered ring cycloazadiboron with a
n-octadecyl group substituted...
A procedure is described for the optimization of a previously
described continuous analysis adaptation of the Pearl-Benson or
nitroso method for estimation of spent sulfite liquor (SSL) or ligno-sulfonates.
The optimized procedure has a response time of 6.5 minutes. In order to monitor samples whose SSL concentration is
between 0...
In this investigation the addition of hydrogen bromide
to 3-methylcyclohexene has been studied in order to see if
the theory of hyperconjugation could be extended to include
olefins of this type. Since the olefin has an equal number
of hydrogens on both carbons carrying the double bond, a
mixture of...
In this report, three studies are presented that utilize computations to predict transformations, identities, and properties of environmental organic molecules. Each study shows how computations can lead to models of chemical behavior. The importance of this research is rooted in the need for understanding how human behavior and health intersect...
The reaction between 4- chloro- 6- methoxy- 5-nitropyrimidine
and methylamine was investigated. The reaction product was identified
as 4-methoxy-6-methylamino-5-nitropyrimidine from synthesis
of the product via 4-chloro-6-methylamino-5-nitropyrimidine.
The product was the result of displacement of chloro substituent with methylamine. The reaction occured under mild condition (e. g. 15-20
C. in dioxane)....
Since the use of N, N-diethylaniline hydrochloride in the chlorination
of uric acid with phosphoryl chloride seems to promote the
reaction, a study of the effect of other salts of nitrogenous bases in
the chlorination of uric acid was undertaken. When N, N-diethylaniline
hydrochloride was used in lieu of the...
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...
Ethanolysis reactions were conducted on the flavonoids, such
as, catechin, quercetin and dihydroquercetin, and polymeric phenolic
components from conifer barks, such as, mountain hemlock phlobatannin
and Douglas-fir phlobaphene with the object of ascertaining
their chemical relationship. These reactions were carried out with
absolute ethanol in the presence of 2.5% hydrogen...