A Methodology for Spirocyclopentannulation. Stereoselective Total Synthesis of (±)-Tochuinyl Acetate and (±)-Dihydrotochuinyl Acetate (Englisch)

In: Synlett   ;  1996 ,  01  ;  67-68  ;  1996

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1
Bis(alkynyl) Titanocenes as Organometallic Chelating Ligands for the Stabilization of Monomeric Organo Copper(I) Compounds
Lang, Heinrich / Weinmann, Markus | 1996
11
Development of Highly Stereoselective and Regioselective Reactions Based on the Alkyne-Co2(CO)6 Complexes
Mukai, Chisato / Hanaoka, Miyoji | 1996
18
Iron-Mediated Allylic Substitutions with Complete Chirality Transfer. Synthesis of Functionalized γ-Substituted Alkenylsulfones of High Enantiomeric Purity
Enders, Dieter / Berg, Stefan von / Jandeleit, Bernd | 1996
21
Facile Synthesis of 1,6-Anhydrohalosugars via a Novel Rearrangement of Galactal
Haeckel, Roland / Lauer, Gilbert / Oberdorfer, Franz | 1996
24
Intramolecular Horner-Wadsworth-Emmons Olefination Route to Annulated Carbohydrates
Pipelier, Muriel / Ermolenko, Mikhail S. / Zampella, Angela / Olesker, Alain / Lukacs, Gabor | 1996
27
Base-Mediated Ring-Opening Reactions of Episulfones to give Alkenylsulfinates: A Stereoselective Synthesis of Alkenyl Sulfones
Dishington, Allan P. / Muccioli, Adriano B. / Simpkins, Nigel S. | 1996
29
Efficient Synthesis of Chiral N-Tosyl-3,4-Disubstituted Hexahydroazepins from D-(-)-Quinic Acid
Albertini, Enrichetta / Barco, Achille / Benetti, Simonetta / De Risi, Carmela / Pollini, Gian P. / Zanirato, Vinicio | 1996
31
A Biogenetic Approach to Halicholactones. Anomalous Cyclization of an Epoxytridecadienoic Acid
White, James D. / Jensen, Mark S. | 1996
34
Cationic 2-Azabutadienes from α-Arylaminosulfones and α-Arylaminonitriles: Intermolecular Polar [4π++2π]-Cycloadditions for the Regio- and Diastereoselective Synthesis of 1,2,3,4-Tetrahydroquinolines
Beifuss, Uwe / Kunz, Olaf / Ledderhose, Sabine / Taraschewski, Michael / Tonko, Christiane | 1996
37
A Facile Synthesis of 2-(2-Hydroxyethyl)allylsilanes
Bardot, Valérie / Remuson, Roland / Gelas-Mialhe, Yvonne / Gramain, Jean-Claude | 1996
39
Diastereoselective Synthesis of Pyrrolidines by 5-Exo-trig Cyclizations of α-Amino Radicals Derived from N-(α-Benzotriazolylalkyl)alkenylamines and Samarium Diiodide
Aurrecoechea, José M. / Fernández-Acebes, Alvaro | 1996
43
Highly Selective Ring-Cleavage of Acetals Catalyzed by Phenylboron Complexes Derived from Sulfonamides of α-Amino Acids
Kinugasa, Motoharu / Harada, Toshiro / Fujita, Katsuhiro / Oku, Akira | 1996
46
Regioselective Conversion of 1,3-Dienes into β,γ-Unsaturated Esters via Carboalkoxylation of η3-Allyltitanocene Complexes
Szymoniak, Jan / Pagneux, Stéphane / Felix, Didier / Moïse, Claude | 1996
49
Asymmetric Borane Reduction of Prochiral Ketones with Oxazaborolidines Derived from α-Pinene
Masui, Moriyasu / Shioiri, Takayuki | 1996
51
α,β-Unsaturated Oxazolines As Acceptors in Stereoselective Cyanide Conjugate Addition
Dahuron, Nathalie / Langlois, Nicole | 1996
53
Tunable C2-Chiral 1,2-Diols. Syntheses of 1,4-Bis-Alkoxybutane-2S,3S-diols
Yuan, Tien-Min / Hsieh, Yu-Tsai / Yeh, Sue-Min / Shyue, Jing-Jong / Luh, Tien-Yau | 1996
55
A One-pot Aromatic Vicarious Nucleophilic Substitution of Hydrogen/Alkylation Route to Substituted Nitrobenzenes
Lawrence, Nicholas J. / Liddle, John / Jackson, David A. | 1996
57
Preparation of Trifluoromethyl Lactol Derivatives via Base-Initiated Cyclobutanol Ring-Opening to a Laterally-Lithiated Trifluoromethyl Ketone
Becker, Daniel P. / Flynn, Daniel L. | 1996
60
Temporary Sulfur Connection in an Intramolecular SN2-Reaction. A Stereocontrolled Synthesis of (±)-Kainic Acid
Bachi, Mario D. / Melman, Artem | 1996
63
Conjugate Addition-Elimination Reactions as a Novel Synthetic Route to Dialkylated α,β-Unsaturated Diesters
D’Onofrio, Franco / Parlanti, Luca / Piancatelli, Giovanni | 1996
65
A Novel Approach to Substituted Pyrrolidines and Piperidines via Olefin Metathesis
Huwe, Christoph M. / Kiehl, Oliver C. / Blechert, Siegfried | 1996
67
A Methodology for Spirocyclopentannulation. Stereoselective Total Synthesis of (±)-Tochuinyl Acetate and (±)-Dihydrotochuinyl Acetate
Srikrishna, A. / Reddy, T. Jagadeeswar / Kumar, P. Praveen / Vijaykumar, D. | 1996
69
A Mild and Efficient Method for the Cleavage of tert-Butyldimethylsilyl and Tetrahydropyranyl Ethers by Ceric Ammonium Nitrate in Methanol
DattaGupta, Arpita / Singh, Ramsharan / Singh, Vinod K. | 1996
72
Transannular Hetero Diels-Alder Reaction of Macrocyclic α,β-Unsaturated Thioketones and Synthesis of Oxonin Derivatives by Desulfurization of the Transannular Adducts
Moriyama, Satoshi / Karakasa, Takayuki / Inoue, Takashi / Kurashima, Katsumi / Satsumabayashi, Sadayoshi / Saito, Takao | 1996
75
A New Strategy for the Synthesis of Selectively Protected Spermidine and Norspermidine Derivatives
Lemaire-Audoire, Sandrine / Savignac, Monique / Genêt, Jean-Pierre | 1996
79
An Effective Route to Highly Substituted Pyridines
Bell, Thomas W. / Heiss, Aaron M. / Ludwig, Richard T. / Xiang, Caili | 1996
82
Synthesis of β,β-Difluoro-γ,δ-unsaturated Carboxylic Esters Using Claisen Rearrangement
Takagi, Toshiyuki / Okikawa, Naoko / Johnoshita, Shuichi / Koyama, Mayumi / Ando, Akira / Kumadaki, Itsumaro | 1996
85
Dirhodium(II) Tetrakis[N-phthaloyl-(S)-tert-leucinate]: A Notable Catalyst for Enantiotopically Selective Aromatic Substitution Reactions of α-Diazocarbonyl Compounds
Watanabe, Nobuhide / Ogawa, Takanori / Ohtake, Yoshihito / Ikegami, Shiro / Hashimoto, Shun-ichi | 1996
87
Allenyl Enolates - A New Class of Chiral Ambident Nucleophiles, 41: Axis to Center Chirality Transfer in Aldol Reactions of Allenyl Enolates
Laux, Michael / Krause, Norbert / Koop, Ulrich | 1996
89
Synthesis and Cycloaromatization of Enyneallenes: New Model Systems for the Neocarzinostatin Chromophore
Krause, Norbert / Hohmann, Michael | 1996
92
Asymmetric Dihydroxylation of Dienes: Synthesis of Tetrols
Belley, Michel L. / Hill, Bryan / Mitenko, Hugh / Scheigetz, John / Zamboni, Robert | 1996
95
A Short Synthesis of Phenyl Kainoid
Horikawa, Manabu / Shirahama, Haruhisa | 1996
97
Lithium Perchlorate Dispersed on Silica Gel, a Mild and Efficient Catalyst for Intramolecular Ene Reactions of Activated 1,6- and 1,7-Dienes
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100
Total Synthesis and Absolute Configuration of (-)-Sedacryptine
Akiyama, Eiji / Hirama, Masahiro | 1996
103
Synthesis of the C1-C8 Tetrahydropyranyl Segment of the Antifungal Agent Ambruticin and its C3 Epimer
Liu, Luping / Donaldson, William A. | 1996
105
Reversal of the Diastereoselectivity in a Sequence of Cycloaddition Reactions: [2+2+2], Ene Type, [4+2]. A Totally Stereoselective Access to the Basic Skeleton of the Kaurane Family.
Cruciani, Paul / Aubert, Corinne / Malacria, Max | 1996
108
A Convenient Synthesis of the (+) Enantiomer of Levoglucosenone and its 5-Hydroxymethyl Analog
Witczak, Zbigniew J. / Mielguj, Raphael | 1996