Results 1 to 10 of about 2,197 (187)
Green Synthesis and Catalysis, 2023 An iron-catalyzed [4 + 2] annulation of amidines with α,β-unsaturated ketoxime acetates is described. This strategy employs amidines as CN units and provides a new protocol for the construction of 2,4,6-trisubstituted pyrimidines under batch and ...
Zheng Fang, Kai Guo
exaly +3 more sources
An isofagomine analogue with an amidine group in the 1,6-position [PDF]
Royal Society Open ScienceThe synthesis of an isofagomine analogue with an amidine group in the 1,6-position is described. Density functional theory calculations showed that this compound has a remarkably different charge distribution compared with isofagomine.
I. Caroline Vaaland Holmgard +9 more
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Nucleophilic Addition Reactions to 10-Acetonitrilium Derivative of nido-Carborane and Intramolecular NH⋯HB Interactions in N-Alkyl Amidines 10-RNHC(Me)=NH-7,8-C2B9H11 [PDF]
MoleculesThe addition reactions of water, alcohols, and primary and secondary amines to the 10-acetonitrilium derivative of nido-carborane were studied. Hydrolysis of 10-MeC≡N-7,8-C2B9H11 results in iminol 10-MeC(OH)=HN-7,8-C2B9H11, which, on treatment with a ...
Kirill R. Pakholkov +6 more
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Innovative Syntheses and Reactivity of Propiolamidines [PDF]
MoleculesPolydentate ligands with nitrogen donor atoms have possibly given rise to the largest group of coordination complexes described. Among these ligands, amidinates represent a nitrogenated version of carboxylates and allow the formation of complexes with ...
Carlos Ginés +3 more
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Hypotheses for synthesis of novel chiral beta-amino-beta-lactams through amidines
Results in Chemistry, 2021 Synthesis of new beta-lactams is an attractive field because some of these types of molecules are biologically active. The design and preparation of C4-nitrogen-substituted beta-lactams are not known.
Bimal Krishna Banik, Alberto Boretti
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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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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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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, 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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