The total synthesis of hydroxyisochamaecynone and its stereochemical assignment.
スポンサーリンク
概要
- 論文の詳細を見る
The structure of an acetylenic nor-sesquiterpene, hydroxyisochamaecynone, was determined to be 4α-hydroxy-5β<I>H</I>-13-noreudesm-1-en-11-yn-3-one (Ib) by means of the stereoselective total syntheses of two possible stereoisomers, Ib and 4β-hydroxy-5β<I>H</I>-13-noreudesm-1-en-11-yn-3-one.
- 公益社団法人 日本化学会の論文
著者
-
Ando Masayoshi
Department of Applied Chemistry, Niigata University
-
Takase Kahei
Department Of Chemistry Faculty Of Science Tohoku University
-
Asao Toyonobu
Department of Chemistry Faculty of Science Tohoku University
関連論文
- Costunolide and Dehydrocostus Lactone as Inhibitors of Killing Function of Cytotoxic T LymPhocytes
- A New Taxoid from a Callus Culture of Taxus cuspidata as an MDR Reversal Agent
- Synthesis and Dynamic Stereochemistry of Azulene-Substituted 9-Fluorenyl, 9,10-Dihydro-10,10-dimethyl-9-anthryl, 10,11-Dihydro-5H-dibenzo[a,d]cyclohepten-5-yl, and 5H-Dibenzo[a,d]cyclohepten-5-yl Cations. Correlations of Stabilities of the Carbocations an
- Synthesis, Properties, and Redox Behaviors of Di- and Trications Composed of Di(1-azulenly)methylium Units Connected by p- and m-Phenylene and 1,3,5-Benzenetriyl Spacers
- Acid-Catalyzed Condensation of Azulenes with 9-Anthracenecarbaldehyde and the Synthesis of (9-Anthryl)di(1-azulenyl)methyl and (1-Azulenyl)[10-(1-azulenyl)-9-anthryl]methyl Hexafluorophosphates
- Decarbonylation Reaction of 1-Azulenecarbaldehydes under Mild Conditions. A Strategy for the Protection of 1- and/or 3-Position of Azulene Rings
- Synthesis and Properties of Extremely Stable Tris (6-methoxy-1-azulenyl)-methyl Cation and a Series of Di(1-azulenyl)phenylmethyl and (1-Azulenyl)diphenylmethyl Cations Stabilized by Methoxy Substituents
- Synthesis and Dynamic Stereochemistry of Di-1-azulenyl-(1- and 2-naphthyl) methyl Hexafluorophosphates. Clear Evidence of the One-Ring Flip Mechanism of a Molecular Propeller by Controlling the Flipping Ring
- Synthesis and Dynamic Stereochemistry of Tris(2-methyl-1-azulenyl)methyl Cation and the Corresponding Methane Derivative. Evidence That the Conjugative Effect Largely Contributes to the Transition State of the Ring Flipping
- Synthesis and Dynamic Stereochemistry of a Tri(1-azulenyl)methyl Cation Containing a Different Substitutent on Each Azulene Ring
- Synthesis and Dynamic Stereochemistry of Bis(3-methyl-1-azulenyl)(1-naphthyl)methyl Hexafluorophosphate. Clear Evidence of the One-Ring Flip Mechanism of Molecular Propeller by Controlling the Flipping Ring
- Syntheses of Azulene Analogues of Triphyenylmethyl Cation: Extremely Stable Hydrocarbon Carbocations and the First Example of a One-Ring Flip as the Threshold Rotation Mechanism for Molecular Propellers^1
- Dynamic Stereochemistry of Di(3-methyl-1-azulenyl)phenylmethyl Cation. Flip of One Azulene Ring as the Threshold Rotation Mechanism
- The Structure of a New Cardenolide Diglycoside and the Biological Activities of Eleven Cardenolide Diglycosides from Nerium oleander
- The Synthesis and Properties of Cyclopent[a]azulen-3(H)-one
- The biological activities of cardenolide triglycosides from stems, twigs, and leaves of Nerium oleander
- The Reaction of 5- and 6-Acetylazulene Derivatives with Hydrazines. The Formation of Azuleno[4,3-f]pyrazoles
- Syntheses of α-, β- and γ-Dolabrins
- Synthesis and reactions of 2-arylhydrazinotropones. II. Synthesis of 5-aryltropolones and B-ring-open colchicine analogues via benzidine type rearrangement of 2-(2-arylhydrazino)tropones.
- The synthesis of a double-layered annulene with 10.PI.-rings. 1,1:2,2-bis([10]annulene-1,6-diyl)ethylene.
- Some Oxidation and Reduction Products of 4-Acetyltropolone and Its Methyl Ethers
- The reaction of 2-chloroazulene derivatives with lithium acetylide in liquid ammonia.
- Studies on the syntheses of sesquiterpene lactones. III. Improved synthesis of vulgarin.
- A facile synthesis of colchiceine analogues (4-(1-acetamido-3-arylpropyl)tropolones).
- The synthesis of 2-styrylazulene and its derivatives by the condensation of 2-methylazulene derivatives with benzaldehydes.
- Synthesis of 2-formylazulene and its derivatives by oxidative cleavage of 2-styrylazulenes.
- The total syntheses of chamaecynone, isochamaecynone, and dihydroisochamaecynone.
- Structure for the "biguaiazulene-3,3'-dione" and efficient preparation of 5-isopropyl-3,8-dimethyl-1,7-azulenedione.
- The Reaction of 3-(ω-EthoxycarbonyIacetyl)-2H-cyclohepta[b]furan-2-one with Active Methylene Compounds
- p-(3,4-Diphenyl-1,3-cyclopentadien-1-yl)phenyltropylium Perchlorate. An Intermediate in the Synthesis of [5.6.7]Quinarene System
- The total syntheses of (-)-occidentalol and its C7-epimer. The stereochemical assignment of (+)-occidentalol.
- Structure of reaction products of 5-nitrosotropolone and arylamine.
- The total synthesis of hydroxyisochamaecynone and its stereochemical assignment.
- Palladium-catalyzed vinylation of haloazulenes and halotropolones with olefins. Utility of the heck reaction in the conjugated carbon chain preparation.
- The sensitized photooxidation of cycloheptatriene (tropilidene). Isolation and thermal isomerization of (4.PI.+2.PI.) cycloadduct, 8,9-dioxabicyclo-[3.2.2]-2,6-nonadiene, and preparation of tropone.
- The synthesis of macrocyclic diaza n-n'-fulvadiene derivatives.
- The Synthesis of 2-(Diphenylcyclopropenylidene)cyclobutane-1,3-dione (1,2-Diphenylbutatriafulvalene-3,5-dione)
- The Synthesis of Azulene Derivatives Condensed with Several Heterocycles
- Some Electrophilic Substitution Reactions of 2-Hydroxyazulene Derivatives
- The Diazotization of 2-Aminoazulene Derivatives. The Formation of 2-Diazo-2,6-azulenoquinone Derivatives
- One-step synthesis of 1,4-diketones by nucleophilic reaction to tricarbonyl complexes of .ALPHA.,.BETA.-unsaturated ketones.
- The Mechanism of the Formation of Tropolone from the Adduct of Cyclopentadiene and Dichloroketene
- The Bromination of 2-Methoxytropone and Its Bromo Derivatives
- Santonin-Related Compound 2 Inhibits the Nuclear Translocation of NF-κB Subunit p65 by Targeting Cysteine 38 in TNF-α-Induced NF-κB Signaling Pathway
- The Synthesis of 1-Phenylazulene and 2-Phenylazulene from the Troponoid Compound
- The Synthesis of 7-Isopropyl-2,4-dimethylazulene (Se-Guaiazulene) from 4-Isopropyltropolone
- Studies on the syntheses of sesquiterpene lactones. I. Chemical transformation of .ALPHA.-santonin into vulgarin, C4-epivulgarin, and arglanine.
- Synthesis of 1,1'-, 2,2'-, 1,2'-, and 2,6'-biazulenes and their derivatives by Ullmann reaction.