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1.
K. Bogdanowicz-Szwed M. Krasodomska M. Lipowska B. Rys A. Skonecka 《Monatshefte für Chemie / Chemical Monthly》1993,124(6-7):721-731
Summary The tandem Michael addition-cyclization of 2-oxo-cycloalkane carbothioic acid anilides1–3 to benzylidenemalononitrile4 yielded spiroannulated pyridines5–7. Reaction of acrylonitrile with2 and3 gave 2,2-disubstituted Michael adducts14,15, whereas with1 led to 2,2,5-tri(2-cyanoethyl)-cyclopentanone11.
Synthese von Pyridinderivaten durch Reaktionen von ,-ungesättigten Nitrilen mit 2-Oxo-cycloalkano-thiokohlensäure-aniliden
Zusammenfassung Die Michael Tandem-Addition-Cyclisierung von 2-Oxo-cycloalkano-thiokohlensäure-aniliden1–3 mit Benzylidenmalononitril4 ergab die spiroannelierten Pyridine5–7. Reaktion von Acrylnitril mit2 und3 ergab die 2,2-disubstituierten Michael-Addukte14,15, wohingegen mit1 2,2,5-Tri(2-cyanethyl)-cyclopentanon11 erhalten wurde.相似文献
2.
Michael Berger Marola S. Lenhard Prof. Dr. Siegfried R. Waldvogel 《Chemistry (Weinheim an der Bergstrasse, Germany)》2022,28(41):e202201029
The para-selective fluorination reaction of anilides using electrochemically generated hypervalent ArIF2 is reported, with Et3N ⋅ 5HF serving as fluoride source and as supporting electrolyte. This electrochemical reaction is characterized by a simple set-up, easy scalability and affords a broad variety of fluorinated anilides from easily accessible anilides in good yields up to 86 %. 相似文献
3.
AbstractAn amide-assisted arene nitration is presented, and both mono- and dinitration of protected anilines could be effected by using NaNO2 and NaNO3 as the mono- and bisnitrating agents, respectively. This divergent synthesis is transition-metal- and acid-free, and features a broad substrate scope, low cost, and ortho–para selectivity. 相似文献
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5.
I. V. Ukrainets N. L. Bereznyakova V. A. Parshikov O. I. Naboka 《Chemistry of Heterocyclic Compounds》2008,44(2):178-183
A large series of 4-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylic acid anilides has been prepared as potential diuretic agents.
The effect of all of the synthesized compounds on the urinary function of the kidney has been investigated. The appearance
of a “structure — diuretic activity” relationship is discussed.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 239–245, February, 2008. 相似文献
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7.
Ivan A. Popov Brennan S. Billow Stephanie H. Carpenter Enrique R. Batista James M. Boncella Aaron M. Tondreau Ping Yang 《Chemistry (Weinheim an der Bergstrasse, Germany)》2022,28(27):e202200114
A method to explore head-to-head ϕ back-bonding from uranium f-orbitals into allyl π* orbitals has been pursued. Anionic allyl groups were coordinated to uranium with tethered anilide ligands, then the products were investigated by using NMR spectroscopy, single-crystal XRD, and theoretical methods. The (allyl)silylanilide ligand, N-((dimethyl)prop-2-enylsilyl)-2,6-diisopropylaniline (LH), was used as either the fully protonated, singly deprotonated, or doubly deprotonated form, thereby highlighting the stability and versatility of the silylanilide motif. A free, neutral allyl group was observed in UI2(L1)2 ( 1 ), which was synthesized by using the mono-deprotonated ligand [K][N-((dimethyl)prop-2-enyl)silyl)-2,6-diisopropylanilide] (L1). The desired homoleptic sandwich complex U[L2]2 ( 2 ) was prepared from all three ligand precursors, but the most consistent results came from using the dipotassium salt of the doubly deprotonated ligand [K]2[N-((dimethyl)propenidesilyl)-2,6-diisopropylanilide] (L2). This allyl-based sandwich complex was studied by using theoretical techniques with supporting experimental spectroscopy to investigate the potential for phi (ϕ) back-bonding. The bonding between UIV and the allyl fragments is best described as ligand-to-metal electron donation from a two carbon fragment-localized electron density into empty f-orbitals. 相似文献
8.
Derivatives of the anilide or ethyl ester of 5-cyano-6-oxo-2-styrylnicotinic acid are formed in the reaction of the anilide or ethyl ester of 5-cyano-2-methyl-6-oxonicotinic acid with aromatic aldehydes. On interaction with hydrazine hydrate the products are converted into hydrazides of 5-cyano-6-oxo-2-styrylnicotinic acid derivatives. 相似文献
9.
Structural optimization of a chiral selector for use in preparative enantioselective chromatography 总被引:2,自引:0,他引:2
Utilizing the immobilized-target strategy, the structure of a proline-derived chiral stationary phase was optimized for use in the preparative chromatographic separation of the enantiomers of two chiral selectors used in commercial chiral stationary phases. In this study, various N-acylated proline anilides were prepared and chromatographed on the commercial Pirkle-1J and -Burke 2 chiral stationary phases. The analyte which displayed the greatest retention without sacrifice of enantioselectivity (the 3,5-dimethoxyanilide of N-undecenoyl proline) was chosen for incorporation into the preparative chiral stationary phase. Once prepared, this phase shows increased analyte retention and enantioselectivity comparable to that of earlier phases derived from 3,5-dimethyl anilides of proline. The increased retention allows one to use mobile phases in which the target analytes are more soluble, hence greatly facilitating an increase in the through-put of a column of a given size. 相似文献
10.
《Green Chemistry Letters and Reviews》2013,6(1):107-112
Abstract Substituted aryl amines undergo smooth acylation with different acyl chlorides to give anilides under sonic condition (35 kHz, 25°C) in the presence of catalytic amounts of aluminum metal powder in acetonitrile as solvent. All the reactions go to completion within 4 min and give the products in high yields (85–97%). 相似文献