Results 301 to 310 of about 174,553 (360)

Chemiluminescent Schiff bases

Journal of the Chemical Society, Chemical Communications, 1976
Although very few examples of chemiluminescent Schiff bases have been described, and attempts to extend this class of reaction have hitherto been unsuccessful, it is now shown that these compounds are generally chemiluminescent on oxidation, with reasonable efficiency.
Frank McCapra, Alexander Burford
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Sulfenylation of chiral Schiff bases

Amino Acids, 1994
The purpose of this study was to examine the conditions of sulfenylation reactions of chiralα-amino esters Schiff bases to protect the chirality in theα-position.
A, Bentama, S, Hoarau, L, Pappalardo, M L, Roumestant, P, Viallefont   +4 more
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Direct diacylation of schiff bases

Tetrahedron Letters, 1988
Abstract A novel diacylation of Schiff bases occurs using catalytic quantities of cobalt carbonyl and phase transfer catalysis conditions.
VASAPOLLO, Giuseppe, Alper Howard
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Uranyl stabilized Schiff base complex

Chemical Communications, 2007
Uranyl Schiff base complex [(UO(2))(2)(Salpro)(OH)(Solvent)(2)] (1) in the presence of excess of ethylenediamine (EDA) does not undergo nucleophilic addition (hydrolysis) and substitution (transamination) reactions due to an extended chelation [2N, 3O + OH] by the flexible backbone.
Mohan S, Bharara, Stephen A, Tonks, Anne E V, Gorden   +2 more
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Polymeric Schiff Bases. I. The Synthesis and Evaluation of Polymeric Schiff Bases Prepared by Schiff Base Exchange Reactions

Journal of Macromolecular Science: Part A - Chemistry, 1967
Abstract This paper compares the syntheses and the thermal stabilities of twelve related conjugated, pseudoconjugated, and nonconjugated Schiff base polymers of the general formula in which Z represents The polymers were prepared (a) by the condensation of Z(NH2)2 and p-C6 H4(CHO)2 in (1) solution and (2) as melts, and (b) by three new Schiff base ...
G. F. D'alelio, J. V. Crivello, R. K. Schoenig, T. F. Huemmer   +3 more
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Polymeric Schiff Bases. III. Some Prototype Exchange Reactions of Schiff Bases

Journal of Macromolecular Science: Part A - Chemistry, 1967
Abstract The amine moiety in Schiff bases can be exchanged quantitatively by another amine to yield new Schiff bases if the volatility of the replacing amine is lower than the derived amine, thereby allowing the latter to distilled from the reaction mass. This amine exchange was shown to be quantitative also for diamines and di-Schiff bases. Similarly,
G. F. D'alelio, J. V. Crivello, T. Kurosaki, R. K. Schoenig   +3 more
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Pyridoxal-derived Schiff’s bases

Russian Journal of General Chemistry, 2015
Over the past few decades synthesis of functionalized derivatives of pyridoxal (vitamin B6) and study of their biological activity have received a great deal of interest [1–3]. Among these compounds, monoand bis-azomethines of pyridoxal occupy an important place [4–6].
L. K. Kibardina, A. V. Trifonov, E. M. Pudovik, A. R. Burilov, M. A. Pudovik   +4 more
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Polymeric Schiff Bases. VI. The Direct Syntheses of Poly-Schiff Bases

Journal of Macromolecular Science: Part A - Chemistry, 1967
Abstract The synthesis of black, high molecular weight polymeric Schiff bases directly from aryldiamines and aryldialdehydes by two methods is described. The first method utilizes benzylideneaniline as the reaction medium. The second method is a direct one-step synthesis involving the reaction of the aryldiamine, aryldialdehyde, aniline, and ...
G. F. D'alelio, J. V. Crivello, R. K. Schoenig, T. F. Huemmer   +3 more
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Schiff's bases of polyallylamine

Polymer Bulletin, 1987
Schiffs bases of polyallylamine were synthesized by the reaction with four aldehydes. Salicylaldehyde (S)- and 2-pyridinecarboxaldehyde (P)-Schiff's base could be used as reverse osmosis membranes when crosslinked with divinyl sulfone, diacetyl or ethylene glycol diglycidyl ether.
Eizo Oikawa, Ken Yahata
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A schiff base of cycloserine

Experientia, 1964
Vond-Cycloserin ist die erste Schiffsche Base isoliert und charakterisiert worden. Bei Erhitzen in Athylalkohol unterbleibt die Umlagerung in einen Cycloserindimerenabkommling und ergibt Racemisierung. Es wird gefolgert, dass Aldehyde nicht auf das Stickstoffatom des Isoxazolidons reagieren und dass Dimerisation von Cycloserinnicht fur die Reaktion mit
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