Density functional theory method was employed to study the effect of the nitroamino group as a substituent in cyclopentane and cyclohexane, which usually construct polycyclic or caged nitramines. Based on the optimized molecular structures of two groups of monocyclic nitramines at the B3LYP/6-31G...
It is to be understood that in instances where two or more radicals are used in succession to define a substituent attached to a structure, the first named radical is considered to be terminal and the last named radical is considered to be attached to the structure in question. Thus, for ...
Substituents which are written below the plane of the cyclo- pentane ring are designated a and those above the plane of the ring as P. been assigned with the aid of 'Hmr decoupling experiments. The chemical shifts of the methylene protons of the hydroxy- methyl substituent in compounds 6 ...
The cyclopentane derivatives produced by the process of this invention are useful as medicines or intermediates for the production of medicines. These derivatives include the prostaglandins, the prostate hormones and their homologues, and have broad pharmacological activity, for example, as a smooth ...
tribofilms were found to be organic polymers containing oxygenated groups. Whenever polymeric tribrofilms were produced, wear volume was suppressed by orders of magnitudes but not completely to zero. These results support previously suggested mechanisms which involve surface oxygen as a reactant species...
As a follow-up to our investigation into the influence of H-bond on the C–NO2 trigger bond, a comparison of the effect of the H-bond on the ring stra
(57)< Abstract > This invention regards using the derivative of the F die prostagladin as the eye pressure depressant. Following to this invention, as for the chemical compound which you use, formula I: < Conversion 1 > [In formula, hatching the belt which is done means the fact that ...
ChemInform Abstract: The D Parameter (EPR Zero‐Field Splitting) of Localized 1,3‐ Cyclopentanediyl Triplet Diradicals as a Measure of Electronic Substituent Effects on the Spin Densities in para‐Substituted Benzyl‐ Type Radicalsmagnetic resonance, nuclear quadrupole resonance (organic substances)...
Depending on the steric bulk of the substituentat the isonitrile, migration of a Hyp group was observed, resultingin two structurally similar but electronically very different isomers.As evidenced by comprehensive spectroscopic and theoretical studies,the heterocyclopentadiene isomer may be regarded as a...
(57)< Abstract > As for this invention, cyclopentane heptane acid, 2- hetero aryl alkyl or the arukeniru derivative which can possess hydroxy, the alkyl oxy, amino and the amide substituent in 1 rank, for example, 1-OH cyclopentane heptane acid, it regards the 2- heteroariruarukeniru ...