Previous investigations of the biosynthesis of sterols by the
arterial wall have shown that the intact aorta is capable of low level
incorporation of labeled precursor into a sterol digitonide. The biosynthesis
of sterols and related lipids by a cell-free preparation of
bovine aorta was investigated in the present study....
The question of why carboxylic acids and phenols are stronger
acids than alcohols has been investigated experimentally and theoretically.
The experimental approach involves comparison of gas-phase
acidities and core-ionization energies. The theoretical treatment uses
calculated point potentials and acidities.
The ease of proton removal is related to two factors known...
Per- and polyfluoroalkyl substances (PFAS) are a group of anthropogenic compounds gaining notoriety as contaminants of emerging concern. With the frequent detection of PFAS in the environment, drinking water, and consumer products, awareness and concern from the public regarding PFAS is increasing. The two most notorious PFAS are perfluorooctanoate (PFOA)...
Water is an absolute necessity for life as we know it. It provides a useful medium in which chemical reactions take place that allowed for the development of single cellular organisms. When combined with the evolutionary accident that was pho- tosynthesis, water became not only a useful medium chemical reactions,...
The tosylhydrazones of 2-heptanone, 4,4-dimethy1-2-
heptanone, 6-heptyn-2-one and 4,4-dimethy1-6-heptyn-2-
one were synthesized and decomposed under a variety of
reaction conditions: dry lithium and sodium salt pyrolyses,
sodium methoxide thermolyses in diglyme and photolyses of
the lithium salt in tetrahydrofuran. The saturated analogues
2-heptanone tosylhydrazone and its 4,4-dimethyl
isomer afforded the...