Results 1 to 10 of about 128 (98)
Functionality of amidines and amidrazones [PDF]
ARKIVOC, 2008 The review summarizes literature dealing with the synthesis of amidines and amidrazones including some of their physical and chemical properties along with their applications in heterocycles synthesis.
Ashraf A. Aly, Ahmed M. Nour El-Din
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Cyclic amidines as precursors for imidazoles [PDF]
ARKIVOC, 2015 The regioselective nucleophilic reactivity of cyclic amidines is considered in the context of their reactions with 2-haloketones to generate imidazoles.
Marc Y. Stevens +5 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 The interaction of acetamidine and phenylamidine with peri-R-ethynyl-9,10-anthraquinones in refluxing n-butanol leads to the formation of cascade transformations products: addition/elimination/cyclization―2-R-7H-dibenzo[de,h]quinolin-7-ones and(or) 2-R-3-
Sergey Francevich Vasilevsky +5 more
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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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Molecules, 2022 In this study, we describe the synthesis of cyclic N-acyl amidines from readily available N-heteroarenes. The synthetic methodology utilized the versatile N-silyl enamine intermediates from the hydrosilylation of N-heteroarenes for the [3 + 2 ...
Dong Geun Jo +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, 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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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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Journal of Advanced Veterinary and Animal Research, 2022 Objective: This study aimed to determine acaricide resistance in Rhipicephalus decoloratus ticks collected from grazing cattle between November 2018 and May 2019 in Elundini, Senqu, and Walter Sisulu Local Municipalities in the northeastern region of the
Mandla Yawa +4 more
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