The Oxidation of 2,3-Dihydro-4<I>H</I>-pyran-4-ones
スポンサーリンク
概要
- 論文の詳細を見る
The synthesis and oxidation of substituted 2,3-dihydro-4<I>H</I>-pyran-4-ones are described. The reaction of crotonoyl chloride with β-ketoester gave dihydro-4<I>H</I>-pyran-4-ones (I). Dihydro-γ-pyrone (Ia) is oxidized, hydrolyzed, and subsequently decarboxylated to give 6-methyl maltol (IV).
- 公益社団法人 日本化学会の論文
著者
-
Sato Kikumasa
Department Of Applied Chemistry Faculty Of Engineering Yokohama National University
-
Inoue Seiichi
Department Of Applied Chemistry Faculty Of Engineering Yokohama National University
-
Sato Kikumasa
Department of Applied Chemistry, Faculty of Engineering, Yokohama National University
-
Ohashi Masao
Chemical Laboratory, Seimi Chemical Co., Ltd.
関連論文
- Facile Synthesis of the Fused 6-6-5 Ring System Containing Chroman Ring from 2-(1-Hydroxy-5-alkenyl) Phenol Derivatives via Intramolecular Inverse-Electron-Demand Diels-Alder Reaction
- A Facile Synthesis of Angularly-Fused 3, 4, 4a, 10b-Tetrahydro-2H, 5H-pyrano[3, 2-c][1]benzopyrans by the One-pot Condensation between Salicylaldehydes and Unsaturated Alcohols
- Highly Z Selective Synthesis of Functionalized Monoterpenoids via N-Ylide[2, 3]Sigmatropic Rearrangement and Its Application to 13-cis-Retinol
- Generation and Intramolecular Cycloaddition of o-Quinonemethides in Protic Solvent. An Efficiet Synthesis of (-)-trans-Hexahydrocannabinol
- Enantioselective Conjugate Addition of Diethylzinc to Chalcones Using NiCl_2-Chiral β-Diamine Complex as Catalyst
- Stereocontrolled Elongation of a Functionalized Isoprene Unit on the E or Z Terminal Methyl of Terpenoids via N-Ylide Rearrangement of the Common Ammonium Salts
- Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by (S)-2I(NN-Disubstituted aminomethyl)pyrrolidine
- PB57 NEW SYNTHESIS OF 1-BENZOFURANS FROM PHENOLS VIA [2,3] SIGMATROPIC REARRANGEMENT : SYNTHESIS OF BENZOFURANOID NORLIGNANS, EGONOL AND (S)-(-)-MACHICENDIOL
- Highly stereoselective palladium(0)-catalyzed allylation of active methylene compounds with allyl imidates under neutral conditions.
- The Oxidation of 2,3-Dihydro-4H-pyran-4-ones
- Lewis acid catalyzed reaction of o-(1-(alkylthio)alkyl)phenols: The generation and reaction of o-quinonemethides and applications to cannabinoid synthesis.
- Ortho-selective alkylation of phenols with symmetric sulfides and sulfuryl chloride.
- The Synthesis of 2,3-Dimethoxy-5-methyl-p-benzoquinone
- The Synthesis of Coenzyme Q
- A new synthesis of o-quinonemethides and their inter- and intramolecular cyclization reactions.
- A synthesis of diosphenols.
- Highly stereoselective synthesis of two natural olefinic diols via N-oxide (2,3)signatropic rearrangement.
- Cis selective wittig olefination of .ALPHA.-alkoxy ketones and its application to the stereoselective synthesis of plaunotol.