Results 211 to 220 of about 70,902 (254)

Schiff bases of pyridoxal

Tetrahedron, 1970
Abstract Various tautomeric forms have been postulated for pyridoxal Schiff bases, including the ring-chain tautomers aldimine ∡ aminoacetal (Ia ∡ Ib). We have found that acylation stabilizes either the aldimine or the aminoacetal form, depending on the structure of the Schiff base and the acylating agent used.
W. Korytnyk, H. Ahrens, N. Angelino
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Synthesis of acyclic dinucleating Schiff base-pyridine and schiff base-phosphine ligands

Tetrahedron Letters, 1995
Abstract 5-tert-butyl-3-pyridyl-salicyaldehyde and 5-tert-butyl-3-diphenylphosphino-salicyaldehyde have been synthesized from 4-tert-butylphenol in good overall yields. Condensation of the salicyaldehydes with 2,3-diamino-2-3-dimethylbutane afforded the desired dinucleating Schiff base-pyridine and Schiff base-phosphine ligands respectively.
Fung Lam, Kin Shing Chan
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Barium Templating Schiff-Base Lateral Macrobicycles

Inorganic Chemistry, 1999
Schiff-base lateral macrobicycles containing two different binding units, a rigid and unsaturated N(2)X set (X: N, O) and a flexible and cyclic N(2)O(n)() set, linked by two aromatic bridges, have been prepared by reaction of the appropriate bibracchial diamines N,N'-bis(aminobenzyl)-diaza-crown and diformyl precursors in the presence of Ba(II) as ...
David, Esteban, Daniel, Bañobre, Rufina, Bastida, Andrés, de Blas, Alejandro, Macías, Adolfo, Rodríguez, Teresa, Rodríguez-Blas, David E., Fenton, Harry, Adams, José, Mahía   +9 more
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Schiff base puzzle project

Journal of Chemical Education, 1992
Students pick an unknown substituted aniline and a substituted benzaldehyde, produces the corresponding Schiff base from them, and compares its melting point to those of 25 possible Schiff bases (their structures and melting points being given).
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Organometallic Schiff-base complexes

2021
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Schiff bases. Part III. Amine and ketone exchange reactions with Schiff bases

Journal of the Chemical Society C: Organic, 1968
Certain ketimines of the type R12 CN–CHR22 undergo amine exchange when heated with diphenylmethylamine to give the ketimines R12CN–CHPh2, which rearrange to the tautomers R12CH–NCPh2. These undergo a second amine exchange with the production of N-(diphenylmethylene)diphenylmethylamine.
Alexander Lawson, J. O. Stevens
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Antituberculous Schiff bases

Journal of Medicinal Chemistry, 1970
J R, Merchant, D S, Chothia
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Spectroscopy of non-aromatic Schiff bases

Journal of Photochemistry, 1981
Abstract The photoelectron and vapour phase UV absorption spectra of a number of non-conjugated and conjugated imines, their oximes and O -methyloximes were determined. The assignment of the bands of lowest frequency is discussed as well as the nature of the primary steps that may occur in the related excited states ((π,π * ), (n,π * and Rydberg ...
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INTRODUCTION OF SCHIFF BASES

This chapter provides an engaging overview of Schiff bases, highlighting their versatility in various chemical applications. Covering the synthesis, structural diversity, and multifaceted reactivity of Schiff bases, the introduction delves into their significance in coordination chemistry, bioinorganic systems, and medicinal chemistry.
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Schiff bases containing quinoline rings

Journal of Medicinal Chemistry, 1968
C T, Bahner, D, Brotherton, M K, Brotherton   +2 more
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