Synthetic Photochemistry. XLIII. Chromium (II) Chloride-Mediated Reductive Condensations of (3S)- and (3R)-1-Iriden-7-als with (3S)-7-Chloro-1-iridenes. ^1H NMR Spectral Differentiation of the Stereochemistry
スポンサーリンク
概要
- 論文の詳細を見る
The chromium (II) chloride-mediated condensations of the several (3S)-and (3R)-1-iriden-7-als with (3S)-7-chloro-1-iridenes, were carried out. Due to a large steric hindrance from the C_3-side chain of the iridenes, stereochemistry of resultant condensates always possessed cis-geometry for the C-11 methyl and the C-14 C_3-substituents. The ^1H NMR chemical shift comparisons established the orientation of the hydroxyl groups on the C-1.
- 九州大学の論文
- 1988-06-30
著者
-
Takeshita Hitoshi
Tohwa University
-
Imaoka T
Toray Industries Inc. Kanagawa
-
WU Xue
Institute of Advanced Material Study, 86, Kyushu University
-
Wu Xue
Institute Of Advanced Material Study 86 Kyushu University
関連論文
- Synthesis and properties of 2-bromo-7-(1,4,7,10-tetraoxa-13-azacyclopenodec-13-yl)-2,4,6-cycloheptatrien-1-one
- Lead(IV) Oxide-Mediated Oxidation of Azulen-2-ols to Form 1,1-Coupled Dimers and Hexacyclic Cage-Dimers
- Novel Non-benzenoid Electron Acceptors:Syntheses and Electron Acceptability of Tetracyanoazulenequinodimethanes and Dicyanoazulenequinonemethides
- A New Mercurophilic Troponoid Tetrathiacyclophane;2, 6, 8, 12-Tetrathia-1(2, 7), 7(2, 7)-ditropona-4(1, 3), 10(1, 3)-dibenzenacyclododecaphane
- Synthesis of 9-Deoxycotylenol Derivatives Carrying a Fluorescent Chromophore
- Synthetic Studies on Dolabellane Diterpenoids. Synthesis of 10-epi-Clavudiol A, an Epimer of a Marine Dolabellanoid
- Synthesis and Properties of Bis(5-alkoxytropolonato) Metallomesogens
- The High-Pressure Cycloadditions of Tropone to Styrenes. Predominant Formation of [8+2] Cycloadducts from α-Methylstyrene
- High-Pressure Diels-Alder Reaction of Tropone Acetal with Several Dienophiles
- The ^C NMR Chemical Shift Comparisons of Dihydrohomobarrelenones
- Electronic Spectra of Jet-Cooled 3- and 4-Chlorotropolones : Influence of Asymmetric Substitution on the Intramolecular Hydrogen Bonding
- Synthesis of 9-Deoxycotylenol Derivatives and Their Seed Germination-Stimulating Activity
- Inner Rotation of the Exocyclic C=C Bonds of Methyl 2-Cyano-(2-methyl-cyclohepta[b]thiophen-8-ylidene)acetate and Methyl 2-Cyano-(1,2-dimethylcyclohepta[b]pyrrol-8-ylidene)acetate
- A New Convenient Synthesis of 1,2′-Biazulenes by Photolysis of 2-Diazo-1,3-dicyanoazulen-6(2H)-one with Azulene Derivatives
- Synthetic Photochemistry. LIX. Intramolecular Photocycloaddition of 2-(3-Butenyl)-2, 6-dimethyl-4H-1, 3-dioxin-4-one
- Synthesis of 9-Deoxy-15-hydroxycotylenol and Its Germination-Stimulating Activity on Lettuce Seeds
- Photodimerizations of 1,5- and 1,7-Azulenequinones : Solvent, Substituent, and Concentration Effects on the Product Distribution
- Total Synthesis of Sollasin a and Sollasin d via Photocycloaddition of Methyl 2, 4-Dioxopentanoate to Methyl E-2-Methyl-2-butenoate
- Synthetic Photochemistry. LXX. Efficient Formation of An Eudesmane Skeleton by the de Mayo Reaction between 1-Isopropyl-4-methylcyclohexa-1,3-diene and Methyl 2,4-Dioxopentanoate
- Synthesis of Bis (2, 6-dihydroxy-5-oxo-1, 3, 6-cycloheptatrienyl) methane from 2-Alkoxy-5-hydroxytropones and the Electrochemical Properties of Bis (3, 4, 7-trioxo-1, 5-cycloheptadienyl)- methane Derivatives
- Addition Reaction of 2-Pyrone-5-carboxylate with α-Terpinene. An Attempted Conversion of Monoterpene to Sesquiterpenoids
- Collision-Activated Dissociation Spectra for the Characterization of the Diels-Alder Adducts between C_ and Troponoids
- Highly Thermally-Stable Diels-Alder Adducts of [60]Fullerene with 2-Cycloalkenones and Their Acetals
- Mass-Spectral Fragmentation Spequences of Thienotropone 1,1-Dioxides
- Synthetic Photochemistry-36-A Formal Total Synthesis of Silphinene from Methyl 8-Methyl-2,4-dioxonon-7-enoate by Intramolecular Photocycloaddition
- Photoaddition Reaction of Methyl 2,4-Dioxopentanoate with Chloroprene
- Preparation of Tetraphenylazulenequinodimethanes from the Reactions of Azulenequinones with Diphenylketene and the ^1H NMR and UV-vis Spectral Studies in Acidic Media
- New Troponoid Liquid Crystalline Compounds, 5-Alkoxy-2-(4-alkoxybenzoylamino)tropones
- Synthesis and Mercurophilic Properties of 2,2'-Oxybis(ethylenethio)ditropone and α-[2-(2-Troponylthio)ethyl]-ω-(2-troponylthio)oligo(oxyethylene)
- Photodimerizations of 3-Methoxy-1, 5-azulenequinone via Consecutive Pericyclic Reactions
- High-Pressure Diels-Alder Reaction of [C60] Fullerene with Functionalized Tropone Derivatives
- Condensation of Polyfluoroalkanols to Tropolone to Form 2-(Polyfluoroalkoxy) tropones and Their High-Pressure Diels-Alder Reaction with [60] Fullerene
- High-Pressure Diels-Alder Reaction between Buckminsterfullerene and Tropone
- Geometrical Isomerism of the Exocyclic C=C Bonds of Heptafulvene Derivatives. Steric and Electronic Effects on the Rotational Barrier
- Mild Intramolecular Thermal Rearrangements of 2-(2-Propynylsulfinyl) tropone and Its Homologues to Cyclohepta[b]thiophen-8-ones
- High-Pressure Diels-Alder Reaction of Cyclooctatetraene with Dimethyl 1,4-Dimethyl-7-oxabicyclo[2.2.1]hepta-2,5-diene2,3-dicarboxylate. Single Crystalline State Valence Isomerization of a syn-Tricyclo[4.2.0.0^]octane Derivative
- A Formal Total Synthesis of Colchicine via the Scott's Intermediate. Palladium (0)-Mediated meta-Ethynylation of a Tropolone Derivative
- Synthetic Photochemistry. XLIII. Chromium (II) Chloride-Mediated Reductive Condensations of (3S)- and (3R)-1-Iriden-7-als with (3S)-7-Chloro-1-iridenes. ^1H NMR Spectral Differentiation of the Stereochemistry
- Synthetic Photochemistry. LXIX. The Structures of the Photocycloadducts of 2-Acetoxy-4, 4-dimethylbutenolide with Cyclohexene : A Revision
- Synthesis and Properties of 1-(Tropon-2-yl)-1-aza-4,7,10,13-tetraoxacyclopentadecanes. Preferential Complexation of Lithium Salt among the Alkali Salts
- Preferential Coordination of Mercury(II) Chloride to Ethereal Oxygens over Sulfurs in 23-Dicyanomethylene-5,8,11,14,17-pentaoxa-2,20-dithiabicyclo[19.4.1]hexacosa-1(26),21,24-triene and 20-Dicyanomethylene-5,8,11,14,-tetraoxa-2,17-dithiabicyclo[16.4.1]tri
- Synthesis and Mercurophilic Properties of Bis (2-troponyl) Thioethers of Di-, Tri-, and Tetraethylene Glycols
- Synthetic Photochemistry. LXVI. The Photoaddition of 2-Oxo-γ-valerolactone to Cyclohexene
- Construction of Functionalized Dolabellane Framework via the Stereocontrolled Cope Rearrangement of a 1,3,2-Dioxasilacycloheptane Derivative
- A Total Synthesis of (±)-Sativene via High-Pressure Diels-Alder Route
- Total Synthesis of Optically-Active Shizuka-acoradienol by Means of High-Pressure Diels-Alder Reaction
- Photoaddition Reaction of Methyl 2,4-Dioxopentanoate with 1,3-Butadiene
- Electrochemical Oxidation of 5-Hydroxytropolone
- Cycloaddition-Cycloreversion Sequence for One-pot Preparation of Dibenzobarrelene and Janusene Derivatives from Anthracenes and 2,3-Bis (methoxycarbonyl)-7-oxanorbornadiene
- Intramolecular Disproportionation Reactions of 4,6-Bis (chloromethyl) -2,5-dimethoxytropone via Heptafulvene Intermediates
- Synthesis of 4, 6-Dicyano-2, 5-dimethoxytropone
- PB71 SYNTHESIS OF 5-8-5-MEMBERED TRICYCLIC TERPENOIDS AND THEIR B-SECO-RELATED COMPOUNDS
- Synthetic Photochemistry. XLVIII. Stereocontrolled Generation of the Ophiobolane Type 5-8-5-Membered Tricyclic Ring System