Uber 1-Ortho und Paratolyl-3-Methyl-5-Aminopyrazol und die entsprechenden Iminopyrine /

Thesis (doctoral)--Universitat Rostock, 1906.

Uber phosphorhaltige derivate des 1-phenyl-3-methyl-pyrazols.

Thesis (doctoral)--

Ueber das 1-phenyl-3-methyl-5-thiopyrazolon und dessen derivate...

Thesis (doctoral)--

Ueber das 1-phenyl-3-methyl-4-benzoyl-5-thiopyrazolon und ein 4...

Thesis (doctoral)--

Ueber das 1-phenyl-2-propyl-3-methyl-5-pyrazolon.

Thesis (doctoral)--

Uber ein Phenylketon des 1-Phenyl-3-Methyl-5-Chlorpyrazols sowie uber ein Bipyrazol und dessen Derivate /

Thesis (doctoral)--Landes-Universitat Rostock.

Uber 1 Phenyl-3 Methyl-4 Azo-p-Phenetidin-5 Pyrazolon.

Thesis (doctoral)--Universitat Rostock.

Ueber Aethyl- und Benzyl-Derivate des 1-Phenyl-3-Methyl-5-Pyrazolons.

Thesis (doctoral)--Universitat Jena.

Uber phosphorhaltige Derivate des 1-Phenyl-3-Methyl-5-Chlorpyrazols.

Thesis (doctoral)--Universitat zu Rostock.

Ueber die Einwirkung von Natrium und Alkohol auf Antipyrin, Methylantipyrin und (1)Phenyl(3)methyl(4)dimethylpyrazolon /

Thesis (doctoral)--Universität Jena, 1896.

Uber basische Derivate von 1-Phenyl-3-methyl-4-azobenzol und 4-azobenzolsulfosaure-5-chlorpyrazol /

Thesis (doctoral)--Universitat Rostock, 1906.

Zur kenntnis des 1-phenyl-3-methyl-4-dimethyl-5-pyrazolons.

Thesis (doctoral)--

Uber (1)-phenyl-(3)-methyl-(4)-nitro-(5)-pyrazolon und (1)-phen...

Thesis (doctoral)--

Simulation of glassy state relaxations in polymers: A static analysis of methyl group and methoxy group rotation in poly(vinyl methyl ether)

We show that the simple quasi-static technique, also called the adiabatic mapping technique, can be used to determine the energetics of rotation of methyl and methoxy groups in amorphous poly(vinyl methyl ether) even though the latter process is too slow to be amenable to direct molecular dynamics simulation. For the methyl group rotation, we find that the mean and standard deviation of the simulated rotational barrier heights agree well with experimental data from quasi-elastic neutron scattering. In the case of the methoxy groups we find that just 4% of the groups contribute more than 90% of the observed dielectric relaxation strength. The groups which make the most contribution are those which, by virtue of their particular conformation and local environment, have two alternative positions of similar energy.

Facile synthesis and proposed mechanism of α,ω‐oxetanyl-telechelic poly(3-nitratomethyl-3-methyl oxetane) by an SN2(i) nitrato displacement method in basic media

The synthesis of a novel heterocyclic–telechelic polymer, α,ω-oxetanyl-telechelic poly(3-nitratomethyl-3-methyl oxetane), is described. Infrared spectroscopy (IR), gel permeation chromatography (GPC), and nuclear magnetic resonance (NMR) spectroscopy have been used to confirm the successful synthesis, demonstrating the presence of the telechelic-oxetanyl moieties. Synthesis of the terminal functionalities has been achieved via displacement of nitrato groups, in a manner similar to that employed with other leaving groups such as azido, bromo, and nitro, initiated by nucleophiles. In the present case, displacement occurs on the ends of a nitrato-functionalized polymer driven by the formation of sodium nitrate, which is supported by the polar aprotic solvent N,N-dimethyl formamide. The formation of an alkoxide at the polymer chain ends is favored and allows internal back-biting to the nearest carbon bearing the nitrato group, intrinsically in an SN2(i) reaction, leading to α,ω-oxetanyl functionalization. The telechelic-oxetanyl moieties have the potential to be cross-linked by chemical (e.g., acidic) or radiative (e.g., ultraviolet) curing methods without the use of high temperatures, usually below 100°C. This type of material was designed for future use as a contraband simulant, whereby it would form the predominant constituent of elastomeric composites comprising rubbery polymer with small quantities of solids, typically crystals of contraband substances, such as explosives or narcotics. This method also provides an alternative approach to ring closure and synthesis of heterocycles.