Results 21 to 30 of about 3,968 (220)
Synthesis of some substituted pyrimidines via cycloaddition reaction of amidines and chalcones [PDF]
مجلة التربية والعلم, 2009 Substituted amidines (1,2) where prepared from the condensation of benzyl, furfuryl alcohols and ethyl sulphate with thiourea. Chalcone compounds (3,5a and 5b) where also prepared from condensation of 4-nitrobenzaldehyde to give compound (3) while ...
H. M. Al-Ajely +2 more
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A New Approach for the Synthesis of N-Arylamides Starting from Benzonitriles
Chemistry Proceedings, 2021 N-Arylamides are a ubiquitous component of a broad range of natural products and biologically active compounds. In this paper, a new synthetic protocol for the preparation of N-arylamides was developed via the hypervalent iodine-mediated aza-Hofmann-type
Pradip Debnath
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Molecules, 2021 A series of novel cobalt bis(dicarbollide) based amidines were synthesized by the nucleophilic addition of primary and secondary amines to highly activated B-N+≡C–R triple bond of the propionitrilium derivative [8-EtC≡N-3,3′-Co(1,2-C2B9H10)(1′,2′-C2B9H11)
Ekaterina V. Bogdanova +4 more
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Syntheses and molecular structures of some di(amidino)monosilanes
Main Group Metal Chemistry, 2021 The syntheses of three different amidinosilanes of the type Me2Si[N=C(Ph)R]2 with R = pyrrolidino, morpholino, and diethylamino and one derivative with the composition R2Si[N=C(Ph)R]2 with R = morpholino are reported. These compounds were prepared in one-
Bös Markus +3 more
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Molecules, 2022 Allyl halides with triflamide under oxidative conditions form halogen-substituted amidines. Allyl cyanide reacts with triflamide in acetonitrile or THF solutions in the presence of NBS to give the products of bromotriflamidation with a solvent ...
Anton S. Ganin +4 more
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Beilstein Journal of Organic Chemistry, 2020 N-Sulfonyl amidines bearing 1,2,3-triazole, isoxazole, thiazole and pyridine substituents were successfully prepared for the first time by reactions of primary, secondary and tertiary heterocyclic thioamides with alkyl- and arylsulfonyl azides.
Vladimir Ilkin +7 more
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Modern chemical disinfectants and antiseptics. Part I
Журнал органічної та фармацевтичної хімії, 2021 Aim. To generalize and systematize information on the properties of modern chemical disinfectants and antiseptic agents (DA and AA). Results and discussion.
Vasyl M. Britsun +3 more
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Principais métodos de síntese de amidinas
Química Nova, 2006 The amidine functional group is found in a wide range of natural products and is biologically active against several pathogens. In addition, amidines have long been regarded as useful intermediates in the synthesis of heterocyclic compounds. Consequently,
Maurício Silva dos Santos +2 more
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Conflict of interest:use of pyrethroids and amidines against tsetse and ticks in zoonotic sleeping sickness endemic areas of Uganda [PDF]
, 2013 Caused by trypanosomes and transmitted by tsetse flies, Human African Trypanosomiasis and bovine trypanosomiasis remain endemic across much of rural Uganda where the major reservoir of acute human infection is cattle.
Welburn Susan C. +17 more
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Molecules, 2021 N-Sulfonyl amidines are developed from a Cu-catalyzed three-component reaction from sulfonyl hydrazines, terminal alkynes and sulfonyl azides in toluene at room temperature.
Yu Zhao +3 more
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