نتایج جستجو برای: thermolysis method

تعداد نتایج: 1630633  

2012
Savvas Ioannou Eleni Moushi

The title compound, C(18)H(24), was the main product of thermolysis of noradamantene dimer (hepta-cyclo-[9.3.1.1(2,6).1(4,8).1(9,13).0(1,9).0(2,8)]octa-deca-ne). The crystal structure was determined to prove that the thermolysis product of noradamantene dimer is favored by stretch release due to ring opening of the four-membered ring. The bond length of the quaternary C atoms of the starting ma...

Journal: :Organic & biomolecular chemistry 2015
Nicolas Lamborelle Justine F Simon André Luxen Jean-Christophe M Monbaliu

Syn sulfoxide elimination was carried out under continuous-flow conditions in a mesofluidic thermolysis reactor. The design of the reactor enabled accurate control of reaction time and conditions, affording a convenient scale-independent procedure for the production of N,C-protected vinylglycine derivatives. Thermolysis at 270 °C under 1000 psi of pressure in superheated toluene enabled typical...

Journal: :Lasers in surgery and medicine 2012
Jessi E Johnson Kathryn F O'Shaughnessy Steve Kim

BACKGROUND AND OBJECTIVES Hyperhidrosis is a condition that affects a large percentage of the population and has a significant impact on peoples' lives. This report presents a technical overview of a new noninvasive, microwave-based device for creating thermolysis of sweat glands. The fundamental principles of operation of the device are presented, as well as the design and optimization of the ...

Journal: :Chemical communications 2002
Mário J S Gomes Lalit Sharma Sundaresan Prabhakar Ana M Lobo Paulo M C Glória

On thermolysis appropriately substituted N-silyloxy-N-allyl enamines undergo smooth 3,3-sigmatropic rearrangments to the corresponding N-silyloxy imino ethers.

Journal: :Chemical communications 2009
Zhu-Rui Shen Jin-Gui Wang Ping-Chuan Sun Da-Tong Ding Tie-Hong Chen

A series of lanthanide oxide microspheres and hollow spheres have been fabricated by thermolysis of corresponding lanthanide coordination compounds formed via bottom-up self-assembly.

Journal: :Chemical communications 2008
Werner Fudickar Torsten Linker

Two different reaction pathways in the photooxygenation of 9,10-diarylanthracenes are identified, with strong evidence for polar (forward, singlet oxygen addition) and radical (backward, thermolysis) intermediates.

Journal: :Russian Journal of Physical Chemistry A 2021

Abstract The effect of structure 25 aromatic compounds on the morphology carbon formed from them during heating to a temperature 970°C in an inert atmosphere is studied. specific surface area determined for number products via nitrogen adsorption (28–48 m 2 /g). Several are shown form without melting stage. X-ray phase analysis nevertheless confirms formation just amorphous all cases, and negli...

Journal: :Environmental Health Perspectives 1985
H R Buser

In several accidents (fires, explosions) involving electrical systems containing polychlorinated biphenyls (PCBs) or benzenes (PCBZs), the formation of polychlorinated tricyclic aromatic compounds such as polychlorinated dibenzofurans (PCDFs), dibenzo-p-dioxins (PCDDs) and biphenylenes (PCBPs) was observed. These findings were not surprising in light of our previous studies on the formation of ...

Journal: :ChemNanoMat 2023

Porous organic materials have received increasing attention due to their potential applications, such as gas storage, separation, and catalysis. In this work we present a series of aromatic, polyazide-containing building blocks that enable the formation new class amorphous porous materials. The azide precursors are obtained in moderate good yields following an easy synthesis procedure. By therm...

Journal: :Bulletin of the Chemical Society of Japan 1978

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