Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Achim Stolle"'
Publikováno v:
Molecules, Vol 18, Iss 7, Pp 8358-8375 (2013)
Linalool is an important intermediate for syntheses of isoprenoid fragrance compounds and vitamins A and E. One process option for its production is the thermal gas-phase isomerization of cis- and trans-pinan-2-ol. Investigations of this reaction wer
Externí odkaz:
https://doaj.org/article/e90eab0d9e7a4831b0b8ca7020cf98ad
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 6, Iss 1, p 7 (2010)
Although a plethora of synthetic procedures mediated by KF-loaded aluminas is available in the literature, there is almost no data concerning the influence of parameters such as alumina modification or KF-loading on experimental results. Hence, the P
Externí odkaz:
https://doaj.org/article/2e2b90215a74478d9a3fb959b376a6a5
Autor:
Achim Stolle, Brindaban Ranu
Ball milling has emerged as a powerful tool over the past few years for effecting chemical reactions by mechanical energy. Allowing a variety of reactions to occur at ambient temperatures and in solvent-free conditions, ball milling presents a greene
Publikováno v:
ACS Sustainable Chemistry & Engineering. 6:6358-6369
A sustainable route to produce graphite oxide (GO) is presented using dry ball milling. The production method was based on pristine graphite flakes in a planetary ball mill. The prepared GO was characterized using UV–vis spectroscopy, BET surface a
Publikováno v:
Separation and Purification Technology. 161:25-31
The conductivity of aqueous solutions containing 1 mM chloroform increases upon the chloroform decomposition that is induced by hydrodynamic cavitation in the suction-cavitation system. However, the rate of increase in conductivity (RIC) drops signif
Autor:
Robert Schmidt, Arno Kwade, Achim Stolle, Christine Friederike Burmeister, Katharina Jacob, Sandra Breitung-Faes
Publikováno v:
Chemical Engineering Journal. 396:124578
The study examines the interaction of process conditions of a mechanochemical process in a planetary ball mill. The investigated Knoevenagel condensation of vanillin and barbituric acid exhibits sigmoidal feedback kinetics under solvent free conditio
Publikováno v:
Powder Technology. 288:123-131
The depolymerization of acid-impregnated cellulose in planetary ball mills was investigated under the perspective of the influence of reaction parameters. Several process, technological and chemical parameters were examined. It was found that with a
Publikováno v:
Organic Process Research & Development. 19:427-436
The influence of crucial reaction parameters on Knoevenagel condensation in planetary ball mills was investigated. Rotation frequency (νrot), milling ball diameter (dMB), milling ball filling degree (ΦMB), and beaker size had obvious influences on
Autor:
Arno Kwade, Robert Schmidt, Katharina Jacob, Achim Stolle, Sandra Breitung-Faes, Christine Friederike Burmeister
Publikováno v:
Chemical Engineering & Technology. 37:857-864
The influence of several process parameters like milling time, ball-to-beaker volume ratio, diameter of milling balls, and rotation frequency on the Knoevenagel condensation of vanillin and barbituric acid in planetary ball mills was investigated. Th
Autor:
Katharina Jacob, Achim Stolle
Publikováno v:
Synthetic Communications. 44:1251-1257
Several triazoles have been synthesized. They were obtained by a Cu-catalyzed cycloaddition of azides and alkynes. The reaction takes place in aqueous media under microwave irradiation using a copper catalyst based on porous glass. The products have