Reactions of pyridoxal with aromatic carboxylic acids in alcoholic medium

Bagautdinova, R. Kh.; Kibardina, L. K.; Trifonov, A. V.; Пудовик, М. А.; Pudovik, E. M.; Burilov, A. R.

doi:10.1134/s1070363217090298

Cited by 4 publications

(2 citation statements)

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“…PLP also acts as a coenzyme in all transamination reactions, decarboxylation, deamination, and racemization reactions of amino acids. The aldehyde group of PLP forms a Schiff‐base linkage (internal aldimine) with amino groups . Cobalt (II)‐complexes of Schiff base ligands have been demonstrated to be the efficient catalysts for a wide range of reactions, and the covalent anchoring of such complexes onto the SBA‐15 is an efficient way to supply an effective solid support heterogeneous catalyst .…”

Section: Introductionmentioning

confidence: 99%

“…The aldehyde group of PLP forms a Schiff-base linkage (internal aldimine) with amino groups. [35][36][37] Cobalt (II)-complexes of Schiff base ligands have been demonstrated to be the efficient catalysts for a wide range of reactions, and the covalent anchoring of such complexes onto the SBA-15 is an efficient way to supply an effective solid support heterogeneous catalyst. [38][39][40][41][42][43] This mesoporous catalyst can contain advantages such as ease of separation, good recycling ability, selectivity, and high activity in the related applications.…”

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confidence: 99%

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Synthesis, characterization, and applications of novel Co(II)‐pyridoxalphosphate‐Schiffbase/SBA‐15 as a nanocatalyst for the green synthesis of benzothiazole heterocycles

Yari

Dehkharghani

Bardajee

et al. 2020

J Chinese Chemical Soc

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Mesoporous heterogeneous santa barbara amorphous (SBA)‐15‐supported cobalt complex, as a novel nanocatalyst containing N–O chelating Schiff‐base ligand was successfully synthesized by the reaction of SBA‐15 and Cobalt(II)‐Schiff‐base complex. The Co(II)‐Schiff base complex also was prepared for the first time, by the reaction of pyridoxal 5′‐phosphate or PLP (biological active form of vitamin B6), 3‐(aminopropyl)‐triethoxysilane in methanol that complexation with CoCl2. The subsequent grafting of entitled complex to SBA‐15 afforded Co(II)‐PLP‐Schiff base/SBA‐15 mesoporous catalyst. Characterization of the product was carried out with powder X‐ray diffraction, Brunauer–Emmett–Teller nitrogen adsorption–desorption, transmission electron microscopy, scanning electron microscopy, thermogravimetric analysis, atomic absorption spectroscopy, and inductively coupled plasma, Fourier‐transform infrared spectroscopy. The results revealed the retention of the textural properties and hexagonally uniform structures of SBA‐15 during the grafting procedure. This nanocatalyst was applied successfully for one‐pot synthesis of various benzothiazole heterocycles under green conditions. This catalyst is an active, reusable, and stable nanomaterial with no leaching of metal ions to the reaction medium. It was used for the synthesis of desired benzothiazole heterocycles by the cyclo‐condensation of aryl‐aldehydes with 2‐aminothiophenol with good to excellent yields and under green conditions.

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Section: Introductionmentioning

confidence: 99%