DOMINO SYNTHESIS

HAVRÁNKOVÁ, Eva a Pavel PAZDERA. DOMINO SYNTHESIS. 2013. ISBN 978-80-263-0502-6.

Základní údaje

• Originální název: DOMINO SYNTHESIS
• Název anglicky: DOMINO SYNTHESIS
• Autoři: HAVRÁNKOVÁ, Eva (203 Česká republika, domácí) a Pavel PAZDERA (203 Česká republika, garant, domácí).
• Vydání: 2013.

Další údaje

• Originální jazyk: čeština
• Typ výsledku: Konferenční abstrakt
• Obor: 10401 Organic chemistry
• Stát vydavatele: Česká republika
• Utajení: není předmětem státního či obchodního tajemství
• Kód RIV: RIV/00216224:14310/13:00074525
• Organizační jednotka: Přírodovědecká fakulta
• ISBN: 978-80-263-0502-6
• Klíčová slova česky: Domino syntheses; Cerium(III) cation; Metal catalysis; Solid support catalysis
• Klíčová slova anglicky: Domino syntheses; Cerium(III) cation; Metal catalysis; Solid support catalysis
• Příznaky: Mezinárodní význam, Recenzováno

Anotace

One of the possibilities to sophisticate compound syntheses is catalysis using supported catalyst which combines the advantages of both homogeneous and heterogeneous catalyst. An application of Ce(III) inorganic salts, first of all CeCl3.7H2O doped by sodium iodide, not until has been described from start of 21st Century. Twenty communications has been present during this time only. Catalysis by Ce(III) salts has been used for an activation of carbonyl compounds and their derivatives in syntheses. Easily available, cheap and mechanically and thermally stable industrial cation-exchangers may be used as carriers1. These in connection with complex of cerium in oxidation state of 3+ provide an effective, easily separable and recyclable catalytic system. This system has been studied with a view to its possible synthetic applications on model domino syntheses, i.e. three-component four-step domino synthesis of substituted 1,5- benzodiazepines2, and three-component four-step domino synthesis of substituted 3,4- dihydropyrimidin-2(1H)-ones3, respectively. It has been discovered that cation Ce(III) supported on a weak acid macroporous cation-exchanger has shown in the studied reactions at least the same or better catalytic activity as salt CeCl3.7H2O, eventually doped by NaI.

Anotace anglicky

One of the possibilities to sophisticate compound syntheses is catalysis using supported catalyst which combines the advantages of both homogeneous and heterogeneous catalyst. An application of Ce(III) inorganic salts, first of all CeCl3.7H2O doped by sodium iodide, not until has been described from start of 21st Century. Twenty communications has been present during this time only. Catalysis by Ce(III) salts has been used for an activation of carbonyl compounds and their derivatives in syntheses. Easily available, cheap and mechanically and thermally stable industrial cation-exchangers may be used as carriers1. These in connection with complex of cerium in oxidation state of 3+ provide an effective, easily separable and recyclable catalytic system. This system has been studied with a view to its possible synthetic applications on model domino syntheses, i.e. three-component four-step domino synthesis of substituted 1,5- benzodiazepines2, and three-component four-step domino synthesis of substituted 3,4- dihydropyrimidin-2(1H)-ones3, respectively. It has been discovered that cation Ce(III) supported on a weak acid macroporous cation-exchanger has shown in the studied reactions at least the same or better catalytic activity as salt CeCl3.7H2O, eventually doped by NaI.

Návaznosti

• 2A-1TP1/090, projekt VaV: Název: Nové katalyzátory a činidla pro udržitelné zelené syntézy a kombinatoriální syntézy.

Investor: Ministerstvo průmyslu a obchodu ČR, Nové katalyzátory a činidla pro udržitelné zelené syntézy a kombinatoriální syntézy