13747-72-3Relevant academic research and scientific papers
Samarium diiodide mediated cascade radical cyclisations - Synthesis of the eudesmane tricyclic framework
Watson, Faye C.,Kilburn, Jeremy D.
, p. 10341 - 10345 (2000)
Radical cascade cyclisation of methylenecyclopropyl cyclohexanone adducts, using samarium diiodide to generate an initial ketyl radical, provide a short route to tricyclic ethers, and the stereochemical outcome can be influenced by the solvent used for the reaction. (C) 2000 Elsevier Science Ltd.
Multicomponent reactions involving tricyclooxonium ylide intermediate: Diastereoselective synthesis of mono- and bisalkoxyoctahydro-1,4-benzodioxocin- 6(5H)-one frameworks
Muthusamy, Sengodagounder,Krishnamurthi, Janagiraman,Suresh, Eringathodi
, p. 861 - 863 (2007)
A highly diastereoselective tandem ring-enlargement and aldol condensation process involving multicomponent reactions of ethereal tricyclooxonium ylide intermediate with alcohols, mono- or dialdehydes in the presence of titanium(iv) isopropoxide is descri
Five Roads That Converge at the Cyclic Peroxy-Criegee Intermediates: BF3-Catalyzed Synthesis of β-Hydroperoxy-β-peroxylactones
Vil, Vera A.,Gomes, Gabriel Dos Passos,Ekimova, Maria V.,Lyssenko, Konstantin A.,Syroeshkin, Mikhail A.,Nikishin, Gennady I.,Alabugin, Igor V.,Terent'Ev, Alexander O.
, p. 13427 - 13445 (2018/11/02)
We have discovered synthetic access to β-hydroperoxy-β-peroxylactones via BF3-catalyzed cyclizations of a variety of acyclic precursors, β-ketoesters and their silyl enol ethers, alkyl enol ethers, enol acetates, and cyclic acetals, with H2O2. Strikingly, independent of the choice of starting material, these reactions converge at the same β-hydroperoxy-β-peroxylactone products, i.e., the peroxy analogues of the previously elusive cyclic Criegee intermediate of the Baeyer-Villiger reaction. Computed thermodynamic parameters for the formation of the β-hydroperoxy-β-peroxylactones from silyl enol ethers, enol acetates, and cyclic acetals confirm that the β-peroxylactones indeed correspond to a deep energy minimum that connects a variety of the interconverting oxygen-rich species at this combined potential energy surface. The target β-hydroperoxy-β-peroxylactones were synthesized from β-ketoesters, and their silyl enol ethers, alkyl enol ethers, enol acetates, and cyclic acetals were obtained in 30-96% yields. These reactions proceed under mild conditions and open synthetic access to a broad selection of β-hydroperoxy-β-peroxylactones that are formed selectively even in those cases when alternative oxidation pathways can be expected. These β-peroxylactones are stable and can be useful for further synthetic transformations.
A mild, room-temperature protection of ketones and aldehydes as 1,3-dioxolanes under basic conditions
Hassner, Alfred,Bandi, Chennakesava Reddy,Panchgalle, Sharad
, p. 2773 - 2776 (2013/02/21)
Protection of ketones or aldehydes as 1,3-dioxolane derivatives proceeds within minutes at room temperature in the presence of N- hydroxybenzenesulfonamide, its O-benzyl derivative, or the tosyl analogue, in the absence of strong protonic acids, and in the presence of base (Et). Acid-sensitive groups such as O-THP, O-TBS, or N-Boc are unaffected. Copyright
Process for the Preparation of Substituted 1-aminomethyl-2-phenyl-cyclohexane Compounds
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Page/Page column 17-18, (2011/12/13)
A process for the preparation of substituted 1-aminomethyl-2-phenyl-cyclohexane compounds.
PROCESS FOR THE PREPARATION OF SUBSTITUTED 1-AMINOMETHYL-2-PHENYL-CYCLOHEXANE COMPOUNDS
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Page/Page column 44, (2011/12/14)
The present invention relates to a process for the preparation of substituted 1-aminomethyl-2-phenyl-cyclohexane compounds.
CALCILYTIC COMPOUNDS
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Page/Page column 150, (2008/06/13)
Novel calcilytic compounds, pharmaceutical compositions, methods of synthesis and methods of using them are provided.
N-dihydroxyalkyl-substituted 2-oxo-imidazole derivatives
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Page/Page column 8; 9, (2010/11/25)
The invention provides the compounds represented by the formula (I) in which, R stands for a dihydroxy-substituted C1-C6 alkyl group, and Cy stands for an optionally substituted C6-C10 bi- or tri-cyclic aliphati
Design, new synthesis, and calcilytic activity of substituted 3H-pyrimidin-4-ones
Shcherbakova, Irina,Huang, Guangfei,Geoffroy, Otto J.,Nair, Satheesh K.,Swierczek, Krzysztof,Balandrin, Manuel F.,Fox, John,Heaton, William L.,Conklin, Rebecca L.
, p. 2537 - 2540 (2007/10/03)
Design, new synthesis, structure-activity relationship studies and calcium receptor antagonist (calcilytic) properties of novel 3H-pyrimidin-4-ones are described.
Design, Pharmacokinetic, and Pharmacodynamic Evaluation of a New Class of Soft Anticholinergics
Huang, Fenglei,Browne, Clinton E.,Wu, Whei-Mei,Juhasz, Attila,Ji, Fubao,Bodor, Nicholas
, p. 1681 - 1689 (2007/10/03)
Purpose. To design and evaluate a new class of soft anticholinergics with subtype selectivity. Methods. A new class of soft anticholinergics was designed based on the "inactive metabolite" approach. Four compounds were synthesized. The potency and soft na
