نتایج جستجو برای: vilsmeier haack reaction
تعداد نتایج: 412538 فیلتر نتایج به سال:
My research focuses on scientific computing and kinetic equations. More specifically I develop and analyze numerical methods for solving the Boltzmann transport equation and similar kinetic models, as well as their application to high performance computing resources. My work is supported by NSF-DMS Grant 1217254 “Accurate high performance computing for nonlinear collisional kinetic theory”, (20...
Here, we present a protocol for the one-step synthesis of title compound in quantitative yield using adapted Vilsmeier conditions. The product was characterized by 1H-,2H-,13C-NMR-, as well IR and Raman spectroscopy. Spectral data are given detail.
Several 3,4-disubstituted indole building blocks were synthesized, containing a one-carbon functional group at C-4 and a three-carbon chain bearing at least one functional group. A C-4 functionalized indole derivative was prepared by application of the Leimgruber-Batcho reaction. Several three-carbon chains were subsequently installed at the indole C-3 position. In the first strategy employed, ...
A number of chalcones were synthesized by reacting indole-3-aldehyde, prepared by Vilsemeir Haack reaction with 4-substituted acetophenone in NaOH solution in ethanol. These chalcones were immediately reacted with urea, thiourea and guanidine hydrochloride in presence of concentrated hydrochloric acid as reagent to obtain the corresponding hydroxy, thio and amino pyrimidines. The synthesized he...
Prof. Haack answers a series of questions on pragmatism, beginning with the origins of this tradition in the work of Peirce and James, its evolution in the work of Dewey and Mead, and its influence beyond the United States in, for example, the Italian pragmatists and the radical British pragmatist F. C. S. Schiller. Classical pragmatism, she observes, is a rich and varied tradition from which t...
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