[Completed cyclization of the quinazolone-4-system by aminomethinylization].
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Cyclization↗
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[Stereospecific cyclization of -omega-disubstituted aminoethanols. 1. 1-aryl-3-imino-3H-oxazolo-(3,4-a) perhydro-pyridine and related compounds].
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Amino Alcohols↗
[Diuretics of the s-triazine series by cyclization of biguanides].
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Biguanides↗
[1,8-Naphthyridine-derivatives from dehydrogenative cyclization (author's transl)].
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Cyclization↗
[Intramolecular cyclizations of acetylene ketones using Lewis acids].
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Acetylene↗
[The reaction of 2,4-dioxo-3-azabicyclo(3,3,1)nonane with organometallic reagents, 2: cyclization and reduction of 3-(diphenyl-hydroxymethyl)-cyclohexanecarboxylic acid-N-methylamide (author's transl)].
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Aza Compounds↗
[1,2-cyclization reactions of indole derivatives. 6. The dimerization of 1-methyl-9-phenyl-3H-pyrrolo(1,2-a)indole-3-one].
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Cyclization↗
[Cyclization reactions of N-monosubstituted thioreas with 1,3-reactive derivatives of propionic acid (author's transl)].
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Acrylates↗
[Cyclization reactions of semicarbazides and carbazine acid esters with aldehydes].
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Aldehydes↗
[Oxidative cyclization of N'-methylhydrazides with lead tetraacetate (author's transl)].
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Acetates↗
[Cyclization of aminoiminomethanesulfinic acid with beta-diketones (author's transl)].
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Chemical Phenomena↗
[Acetamidacetal cyclization. 2. 2-Aminoquinolines and pyrrolo(2,3-b)quinolines].
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Animals↗
[Acetamidacetal cyclization. 3. Heterocyclic fusion of 2-aminopyridines and -quinolines].
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Aminopyridines↗
Kinetic studies on the cyclization of T7 and T1 DNA's.
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Coliphages↗
Rapid and quantitative cyclization of multiple peptide loops onto synthetic scaffolds for structural mimicry of protein surfaces.
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Amino Acid Sequence↗
Histidine residue at position 234 of oxidosqualene-lanosterol cyclase from saccharomyces cerevisiae simultaneously influences cyclization, rearrangement, and deprotonation reactions.
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Amino Acid Sequence↗
Expression of Alternaria solani PKSF generates a set of complex reduced-type polyketides with different carbon-lengths and cyclization.
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Alcohol Oxidoreductases↗
Asymmetric rhodium-catalyzed hydrogenation meets gold-catalyzed cyclization: Enantioselective synthesis of 8-hydroxytetrahydroisoquinolines.
Different furyl-substituted (Z)-dehydroamino acid derivatives were hydrogenated with the rhodium/Mandyphos(OMe)-system to give enantiomeric excesses between 80 and 98 %. The absolute configuration of the newly formed stereogenic center was determined by anomalous diffraction to be R. These chiral furyl alanines were transferred into 8-hydroxytetrahydroisoquinolines by employing gold-catalyzed arene synthesis as the key step. During the latter reaction sequence, also including either a propargylation or a reduction, a protection of the hydroxy group, and a subsequent propargylation, no racemization of the stereogenic center was observed. With very electron-rich furans, instead of the 8-hydroxytetrahydroquinolines as products, furans anellated to seven-membered rings with exocyclic C-C double bonds are formed under the same reaction conditions.
Catalysis↗