Unlike ammonia, amines serve as bases and are reasonably strong (for some examples of Ka conjugate acid values, see the table provided). The basicity of amines varies by molecule and largely depends on: the presence of the lone pair of nitrogen electrons The electronic properties of the substit...
Define Amines. Amines synonyms, Amines pronunciation, Amines translation, English dictionary definition of Amines. n. Any of a group of organic compounds of nitrogen, such as ethylamine, C2H5NH2, that may be considered ammonia derivatives in which one or
Definition Trace amines, which include β-phenylethylamine (PEA), tryptamine (T), phenylethanolamine (PEOH), the tyramines (TAs), octopamines (OAs), and synephrine (SYN) [some authors includeN,N-dimethyltryptamine (DMT) in this list], are amines related structurally to, but present in the b...
Data collection and base year analysis are done using data collection modules with large sample sizes. The stage includes obtaining market information or related data through various sources and strategies. It includes examining and planning all the data acquired from the past in advance. It likewise...
Formula (III) provides a general definition of the amines furthermore required as starting substances for carrying out processes (a) and (b) according to the invention. In this formula (III), R1 and R2 preferably represent those radicals which have already been mentioned as preferred for these...
Formally, definition of analogue allows the establishment of three categories: analogues possessing chemical and pharmacological similarities (direct analogues); analogues possessing structural similarities only (structural analogues); and chemically different compounds displaying similar pharmacological properties (...
In some embodiments, the compound of formula (I) (or formula (I′)) does not have the following structure (i.e. in some embodiments the compounds having the following structure are excluded from the definition of any generic formula which may encompass them and do not form part of the cla...
Included in anextended cycloaliphatic amine definition are aminomethyl cycloaliphatics.Although some cycloaliphatic amine and diamine products have direct end useapplications, their major function is as low cost organic intermediates sold asmoderate volume specification products.2. Physical PropertiesFor simple...
( 6 ) . The rate constant k was defined in terms of its value at the median temperature, Tm (503 K), and the activation energy, E, according to the definition given in Eq. (4). The values estimated for the two parameters were k(T,) = 4.2 2 0.1 X m3/kg.s and E = 85 2 ...
as vividly exempli-fied by the SCF net charges obtained with a minimalbasis set for the nitrogen of methylamine, namely2374, 147 and 2291 millielectron ( ? 10 23 eunits), respectively, depending on whether Mulli-ken’s, Lo¨wdin’s or Jug’s definition is implemented.Journal of Molecular...