Search Results - "Faigl, F"

New Atropisomeric Amino Alcohol Ligands for Enantioselective Addition of Diethylzinc to Aldehydes by Faigl, F., Deák, SZ, Erdélyi, ZS, Holczbauer, T., Czugler, M., Nyerges, M., Mátravölgyi, B.

“…Efficient synthesis of several new atropisomeric amino alcohols having 1‐phenyl‐1H‐pyrrole skeleton are reported. Steric arrangements of the products were…”
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Development of organic chemical technologies using computer controlled model-reactor by Csontos, I., Marosi, Gy, Faigl, F., Ravadits, I., Kőmíves, J.

“…Methods for developing different types of organic chemical technologies have been elaborated. It required the building up of a system that integrates the…”
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Reaction of cyclopropane carboxylic acid derivatives with sulphur tetrafluoride — an example of a diastereoselective ring opening by Hell, Z, Finta, Z, Dmowski, W, Faigl, F, Pustovit, Yu.M, Tőke, L, Harmat, V

“…Cyclopropane carboxylic acid derivatives can be converted into trifluoromethyl group-containing compounds using SF 4. In the case of a bicyclic cyclopropane…”
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Convenient, Benign and Scalable Synthesis of 2- and 4-Substituted Benzylpiperidines by Ágai, Béla, Proszenyák, Ágnes, Tárkányi, Gábor, Vida, László, Faigl, Ferenc

“…A short, scalable and environmentally benign synthesis of 2‐ and 4‐substituted benzylpiperidines has been developed. The method is based on the…”
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Enhancement of Benzylic basicity by a fluorine substituent at the para- position: a case of lone pair/lone pair repulsion by Faigl, F, Marzi, E, Schlosser, M

“…The introduction of a halogen atom at any aromatic position of toluene considerably accelerates the base-promoted deprotonation of the methyl group…”
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A facile synthesis of 3-(substituted benzyl)piperidines by Ágai, Béla, Nádor, Adrienn, Proszenyák, Ágnes, Tárkányi, Gábor, Faigl, Ferenc

“…A convenient new method has been developed for preparation a series of 3-(substituted benzyl)piperidines by addition of substituted phenylmagnesium bromide to…”
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Combined directed ortho metalation—intramolecular Friedel–Crafts connections. Regiospecific route to 1-substituted fluoren-9-ones by Tilly, David, Samanta, Subhendu S, Faigl, Ferenc, Mortier, Jacques

“…ortho-Substituted-2-biphenyl carboxylic acids of the type 3a– j were prepared by the tandem metalation sequence from 2-biphenyl carboxylic acid 1 with…”
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Efficient, scalable kinetic resolution of cis-4-benzyloxy-2,3-epoxybutanol by Faigl, Ferenc, Thurner, Angelika, Battancs, Melinda, Farkas, Ferenc, Poppe, László, Bódai, Viktória, Kmecz, Ildikó, Simándi, Béla

“…A new enzyme catalysed kinetic resolution of cis-4-benzyloxy-2,3-epoxybutanol has been reported. Efficient, scalable separation of the optically active alcohol…”
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Hydrogenation of a 4-benzylpyridine derivative over supported precious metal catalysts by Proszenyák, Ágnes, Ágai, Béla, Hegedűs, László, Faigl, Ferenc

“…The heterogeneous catalytic hydrogenation of 4-(4-fluorobenzyl)pyridine resulted in 4-(4-fluorobenzyl)piperidine, an important and valuable pharmaceutical…”
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Resolution and enantioselective rearrangements of amino group-containing oxiranyl ethers by Faigl, Ferenc, Thurner, Angelika, Tárkányi, Gábor, Kovári, Julia, Mordini, Alessandro

“…Resolution protocols for 2-benzyloxymethyl-3-diethylaminomethyloxirane and 2-benzyloxymethyl-3-piperidinomethyloxirane have been developed. In the presence of…”
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Useful base promoted elaborations of oxiranyl ethers by Thurner, Angelika, Faigl, Ferenc, Tőke, László, Mordini, Alessandro, Valacchi, Michela, Reginato, Gianna, Czira, Gábor

“…Functionalized oxiranyl ethers can be regio- and stereoselectively converted into hydroxy oxetanes or cis-diols by treatment with organometallic bases. These…”
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Efficient synthesis and resolution of (±)-1-[2-carboxy-6-(trifluoromethyl)phenyl]pyrrole-2-carboxylic acid by Fogassy, Katalin, Harmat, Veronika, Böcskei, Zsolt, Tárkányi, Gábor, Tőke, László, Faigl, Ferenc

“…A novel, efficient synthesis and resolution of (±)-1-[2-carboxy-6-(trifluoromethyl)-phenyl]pyrrole-2-carboxylic acid has been developed for the preparation of…”
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Competition and co-operation between ortho directing groups and activating agents: Regioselective metallation of 1-(methoxyphenyl)pyrroles by Faigl, Ferenc, Fogassy, Katalin, Thurner, Angelika, Tőke, László

“…The role of di- and tri-dentate tertiary amine type ligands was studied in regioselective lithiation reactions of 1-(methoxyphenyl)pyrroles with butyllithium…”
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Structure determination and molecular modelling of an unexpected side product of a cyclopropane lactone formation process by Faigl, Ferenc, Finta, Zoltán, Hell, Zoltán, Kárpáti, Tamás, Harmat, Veronika, Kövesdi, István, Tőke, László

“…A new by-product has been isolated from the reaction mixture of a single electron transfer induced one-pot synthesis of a cyclopropane derivative. Molecular…”
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Effect of a trifluoromethyl group on molecular structure: Competitive mono- and dilithiation of 1-[(trifluoromethyl)phenyl]pyrroles by Faigl, Ferenc, Fogassy, Katalin, Szűcs, Erzsébet, Kovács, Krisztina, Keserű, György M, Harmat, Veronika, Böcskei, Zsolt, Tőke, László

“…Depending on the conditions used during the lithiation and subsequent carboxylation of 1-[(trifluoromethyl)phenyl]pyrroles the mono- and the dicarboxylated…”
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Time dependent efficiency of optical resolution of aminooxiranes with O,O'-dibenzoyl-(R,R)-tartaric acid by Faigl, Ferenc, Thurner, Angelika, Farkas, Ferenc, Proszenyák, Ágnes, Valacchi, Michela, Mordini, Alesandro

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Kinetic resolution of racemic alkoxy oxiranes by chiral lithium amides by Bigi, Anna, Mordini, Alessandro, Thurner, Angelika, Faigl, Ferenc, Poli, Giovanni, Tõke, László

“…The isomerization of alkoxy oxiranes with chiral lithium amides has been carefully investigated with the aim of finding an enantioselective approach to hydroxy…”
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Stereoselective synthesis of trifluoromethyl group containing cyclopropane lactones by Faigl, Ferene, Dévényi, Tamás, Laukó, Anna, Töke, Liszlő

“…Malonic acid esters of trans-1-substituted-3-trifluoromethyl-2-butene-1-ols underwent stereoselective, SET induced cyclization reaction sequence in the…”
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A new base promoted rearrangement of ( E)-1-benzyloxy-2,3-epoxyalkanes by Thurner, Angelika, Faigl, Ferenc, Mordini, Alessandro, Bigi, Anna, Reginato, Gianna, Töke, László

“…( E)-1-benzyloxy-2,3-epoxyalkanes ( 4) underwent stereoselective rearrangement in the presence of LIDAKOR reagent and large excess of butyllithium producing (…”
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The special directing effect of fluorine: Ligand independent ortho lithiation of 1-(fluorophenyl)pyrroles by Faigl, Ferenc, Fogassy, Katalin, Szántó, Zoltán, Lopata, Antal, Tőke, László

“…Lithiation of 1-(fluorophenyl)pyrroles occurred exclusively ortho to the fluorine substituent independently of the structure of the tertiary amine type ligands…”
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