A simple synthesis of .ALPHA.-ylidene .GAMMA.-lactones from .GAMMA.-trimethylsiloxy nitriles.
スポンサーリンク
概要
- 論文の詳細を見る
α-Cyano carbanions which are generated from γ-trimethylsiloxy nitriles have been found to react with aldehydes to give α-(1-hydroxyalkyl)-γ-trimethylsiloxy nitriles (<B>6</B>). α-Ylidene γ-lactones (<B>5</B>) are derived from <B>6</B> in two steps; hydrolytic lactonization to α-(1-hydroxyalkyl) γ-lactones and dehydration. The stereochemistry of the lactones <B>5</B> with one exception have been found to be of the <I>E</I> form on the basis of the NMR spectra.
- 公益社団法人 日本化学会の論文
著者
-
Izumi Yusuke
Department of Cardiology Ogakii Municipal Hospital
-
Murata Shizuaki
Department Of Chemistry College Of General Education Nagoya University
-
MATSUDA Isamu
Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
-
Izumi Yusuke
Department of Synthetic Chemistry, Faculty of Engineering, Nagqya University
関連論文
- Roles of Mono- and Divalent Cations in DNA Compaction Induced by Histone-Mimic Nanoparticles
- PE-200 Assessment of Left Ventricular Dyssynchrony in Patients with Systolic Dysfunction by Regional Wall Motion Analysis of ECG-Gated Myocardial Perfusion SPECT(Heart failure, clinical(09)(M),Poster Session(English),The 72nd Annual Scientific Meeting of
- Prophyrin Synthesis in Clay Nanospaces
- PC70 On Biopterin Cofactor, the Essential Element for the Biosynthesis of Neurotransmitters
- Synthesis of 11H-Indolo[3,2-c]quinoline Derivatives Carrying a Substituent at the 6-Position
- HII-5 A Case Study of Measurement of Formaldehyde and Volatile Organic Compounds Pollution in Dwellings
- Transition-Metal Catalyzed Multi-Component Carbocyclization and Related Reactions of Bifunctional Molecules
- Acidic Alkali Metal Salts and Ammonium Salts of Keggin-type Heteropolyacids as Efficient Solid Acid Catalysts for Liquid-phase Friedel-Crafts Reactions
- Clay montmorillonite: An efficient, heterogeneous catalyst for Michael reactions of silyl ketene acetals and silyl enol ethers with .ALPHA.,.BETA.-unsaturated carbonyl compounds.
- Reactions of Group IV Organometallic Compounds. XXX. Stepwise Addition of Isocyanates and Isothiocyanates with N-Trimethylstannyl(diphenylmethylene)amine
- Trimethylsilyl triflate induced reaction of humulene 6,7-epoxide. Cyclization to 5-hydroxy-4,8,11,11-tetramethyltricyclo(6.3.0.02,4)undec-9-ene.
- The effect of 4-hydroxyl substituent on the singlet chemiexcitation yield in base-catalyzed air oxidation of 3,5-dichlorophenylpyruvic acids.
- Regiospecific Ring Opening of Epoxides with Cyanotrimethylsilane on Solid Bases: Reaction Features, and Role of Metal Cations of Solid Bases.
- Lewis acid mediated synthesis of 2-alkenenitriles using C,N-bis(trimethylsilyl)ketenimine and carbonyl compounds.
- A simple synthesis of .ALPHA.-ylidene .GAMMA.-lactones from .GAMMA.-trimethylsiloxy nitriles.
- Pillared tetrasilicic mica catalysts modified by fixed interlayer cations. Classification of fixation mode by cations.
- Clay montmorillonite-catalyzed aldol reactions of silyl ketene acetals with carbonyl compounds.
- New application of solid acid to carbon-carbon bond formation reactions: Clay montmorillonite-catalyzed aldol reactions of silyl enol ethers with aldehydes and acetals.
- Silica-supported heteropoly acid catalyst for liquid-phase Friedel-Crafts reactions.
- Acidity enhanced pillared clay catalysts. Modification of exchangeable sites on fluor-tetrasilicic mica by the fixed interlayer cations.
- Reaction of Group IV Organometallic Compounds. XXXII Modified Synthesis of Imidazolidines with N,N′-Bis(trimethylsilyl)-1,2-diamines
- Pillared tetrasilicic mica catalysts having fixed interlayer Ca ions. Comparison with other clays.
- Reaction of Group IV Organometallic Compounds. XXXI. The Reaction of N-Trimethylsilyl- and -stannyl(diphenylmethylene)amine with Diketene
- Electronic spectra of (DBTTF)3SnBr6 complex.