Table of Contents

Journal Cover
June 1, 2000
Volume 2, Issue 11
Pages 1497-1648
For Selected Content:

Letters

Intramolecular [4 + 2] Cycloaddition Reactions of Diarylacetylenes:  Synthesis of Benzo[b]fluorene Derivatives via Cyclic Allenes

David Rodríguez, Armando Navarro, Luis Castedo, Domingo Domínguez, and Carlos Saá
pp 1497–1500
Publication Date (Web): May 03, 2000 (Letter)
DOI: 10.1021/ol991391t

A Valine-Derived Lithiated 3-Methylthiomethyl-1,3-oxazolidin-2-one for Enantioselective Nucleophilic Hydroxymethylation, Formylation, and Alkoxycarbonylation of Aldehydes

Christoph Gaul and Dieter Seebach
pp 1501–1504
Publication Date (Web): May 03, 2000 (Letter)
DOI: 10.1021/ol0000410

A Glycosylation Protocol Based on Activation of Glycosyl 2-Pyridyl Sulfones with Samarium Triflate

Grace X. Chang and Todd L. Lowary
pp 1505–1508
Publication Date (Web): May 05, 2000 (Letter)
DOI: 10.1021/ol005579k

Chiral Action at a Distance:  Remote Substituent Effects on the Optical Activity of Calyculins A and B

Rama K. Kondru, David N. Beratan, Gregory K. Friestad, Amos B. Smith, III, and Peter Wipf
pp 1509–1512
Publication Date (Web): April 29, 2000 (Letter)
DOI: 10.1021/ol005634p

Studies in Marine Polypropionate Synthesis:  Total Synthesis of (−)-Baconipyrone C

Ian Paterson, David Yu-Kai Chen, José Luis Aceña, and Alison S. Franklin
pp 1513–1516
Publication Date (Web): May 03, 2000 (Letter)
DOI: 10.1021/ol000027n

Improvement in Olefin Metathesis Using a New Generation of Ruthenium Catalyst Bearing an Imidazolylidene Ligand:  Synthesis of Heterocycles

Anne Briot, Murielle Bujard, Véronique Gouverneur, Steven P. Nolan, and Charles Mioskowski
pp 1517–1519
Publication Date (Web): May 05, 2000 (Letter)
DOI: 10.1021/ol005651e

Addition of Benzylzinc Halides to Alkenyl(phenyl)iodonium Triflates:  Stereoselective Synthesis of Trisubstituted Alkenes

Robert J. Hinkle, Alessandra C. Leri, Geoffrey A. David, and Whitney M. Erwin
pp 1521–1523
Publication Date (Web): May 03, 2000 (Letter)
DOI: 10.1021/ol005682+

Conformational Ordering of Apolar, Chiral m-Phenylene Ethynylene Oligomers

Luc Brunsveld, Ryan B. Prince, E. W. Meijer, and Jeffrey S. Moore
pp 1525–1528
Publication Date (Web): May 06, 2000 (Letter)
DOI: 10.1021/ol0056877

Catalytic, Asymmetric Synthesis of the C1‘−C10‘ Segment of Pamamycin 621A

Michael A. Calter and F. Christopher Bi
pp 1529–1531
Publication Date (Web): April 29, 2000 (Letter)
DOI: 10.1021/ol005714t

Oxidative Diphosphonylation of 1,4-Dihydropyridines and Pyridinium Salts

Rodolfo Lavilla, Alessandro Spada, and Joan Bosch
pp 1533–1535
Publication Date (Web): May 09, 2000 (Letter)
DOI: 10.1021/ol0057380

Synthesis, Structure Proof, and Biological Activity of Epothilone Cyclopropanes

James Johnson, Soong-Hoon Kim, Marc Bifano, John DiMarco, Craig Fairchild, Jack Gougoutas, Francis Lee, Byron Long, John Tokarski, and Gregory Vite
pp 1537–1540
Publication Date (Web): April 28, 2000 (Letter)
DOI: 10.1021/ol0058240

Solvolytic Enolization of Scytalone

Gregory S. Basarab, Douglas B. Jordan, and Ya-Jun Zheng
pp 1541–1544
Publication Date (Web): May 10, 2000 (Letter)
DOI: 10.1021/ol0058590

New Phototriggers:1 Extending the p-Hydroxyphenacyl π−π* Absorption Range

Peter G. Conrad II, Richard S. Givens, Jörg F. W. Weber, and Karl Kandler
pp 1545–1547
Publication Date (Web): May 10, 2000 (Letter)
DOI: 10.1021/ol005856n

Modular Construction of Dendritic Carbosilanes. Organization of Dendrimer Connectivity around Bifunctional Precursors That Are Adapted for Sequential Convergent and Divergent Propagative Steps

Miguel Angel Casado and Stephen R. Stobart
pp 1549–1552
Publication Date (Web): May 11, 2000 (Letter)
DOI: 10.1021/ol000038g

Mechanistic Studies of Radical-Based Processes. Use and Misuse of EPR Spectroscopy

Angelo Alberti, Massimo Benaglia, and Dante Macciantelli
pp 1553–1555
Publication Date (Web): April 28, 2000 (Letter)
DOI: 10.1021/ol005741j

Synthesis of 2-Substituted-2,3- dihydro-1,4-dioxino[2,3-b]pyridine Derivatives

Mustapha Soukri, Said Lazar, Mohamed Akssira, and Gérald Guillaumet
pp 1557–1560
Publication Date (Web): May 09, 2000 (Letter)
DOI: 10.1021/ol005761l

Synthesis and Reactivity of Conformationally Locked α-Aminoorganostannanes and α-Aminoorganolithiums. Discovery of a Surprising Configurational Requirement for Transmetalation

Gilles Chambournier and Robert E. Gawley
pp 1561–1564
Publication Date (Web): May 05, 2000 (Letter)
DOI: 10.1021/ol005770u

Supramolecular Chirogenesis in Bis(zinc porphyrin):  An Absolute Configuration Probe Highly Sensitive to Guest Structure

Victor V. Borovkov, Juha M. Lintuluoto, and Yoshihisa Inoue
pp 1565–1568
Publication Date (Web): May 02, 2000 (Letter)
DOI: 10.1021/ol0000556

2,5-Dimethylphenacyl as a New Photoreleasable Protecting Group for Carboxylic Acids

Petr Klán, Miroslav Zabadal, and Dominik Heger
pp 1569–1571
Publication Date (Web): May 05, 2000 (Letter)
DOI: 10.1021/ol005789x

A Convergent Synthesis of (+)-Cryptophycin B, a Potent Antitumor Macrolide from Nostoc sp. Cyanobacteria

Arun K. Ghosh and Alexander Bischoff
pp 1573–1575
Publication Date (Web): May 11, 2000 (Letter)
DOI: 10.1021/ol000058i

Mannich-Type Reaction with Trifluoromethylated N,O-Hemiacetal:  Facile Preparation of β-Amino-β-trifluoromethyl Carbonyl Compounds

Jun Takaya, Hirotaka Kagoshima, and Takahiko Akiyama
pp 1577–1579
Publication Date (Web): May 10, 2000 (Letter)
DOI: 10.1021/ol005812e

Solid Phase Syntheses of Polyamine Toxins HO-416b and PhTX-433. Use of an Efficient Polyamide Reduction Strategy That Facilitates Access to Branched Analogues

Fan Wang, Sukhdev Manku, and Dennis G. Hall
pp 1581–1583
Publication Date (Web): May 05, 2000 (Letter)
DOI: 10.1021/ol005817b

New Chiral Binaphthyl Building Blocks:  Synthesis of the First Optically Active Tetrathiafulvalene Dimers

Rafael Gómez, José L. Segura, and Nazario Martín
pp 1585–1587
Publication Date (Web): April 28, 2000 (Letter)
DOI: 10.1021/ol005821n

Pyrrolidines from β-Aminoselenides via Radical Cyclization. Diastereoselectivity Control by the N-Substituent

Magnus Besev and Lars Engman
pp 1589–1592
Publication Date (Web): May 02, 2000 (Letter)
DOI: 10.1021/ol005829x

Remarkable O2-Effect in 1,4-Additions of Diethylzinc to 6-Acyloxy-2H-pyran-3(6H)-ones and 6-Alkoxy-2H-pyran-3(6H)-ones

Hanneke van der Deen, Richard M. Kellogg, and Ben L. Feringa
pp 1593–1595
Publication Date (Web): May 02, 2000 (Letter)
DOI: 10.1021/ol005843+

First Domino Mukaiyama-Aldol Cyclizations of 1,3-Bis(trimethylsiloxy)-1,3-butadienes with 1,2-Diketones

Peter Langer and Valentin Köhler
pp 1597–1599
Publication Date (Web): May 06, 2000 (Letter)
DOI: 10.1021/ol005852i

A New Strategy for Cyclopentenone Synthesis

Barry M. Trost and Anthony B. Pinkerton
pp 1601–1603
Publication Date (Web): May 06, 2000 (Letter)
DOI: 10.1021/ol005853a

Cyclodidemniserinol Trisulfate, a Sulfated Serinolipid from the Palauan Ascidian Didemnum guttatum That Inhibits HIV-1 Integrase

Scott S. Mitchell, Denise Rhodes, Frederic D. Bushman, and D. John Faulkner
pp 1605–1607
Publication Date (Web): May 05, 2000 (Letter)
DOI: 10.1021/ol005866o

A New and Practical Five-Carbon Component for Metal-Catalyzed [5 + 2] Cycloadditions:  Preparative Scale Syntheses of Substituted Cycloheptenones

Paul A. Wender, Alaric J. Dyckman, Craig O. Husfeld, and Marc J. C. Scanio
pp 1609–1611
Publication Date (Web): April 29, 2000 (Letter)
DOI: 10.1021/ol0058691

A Novel Route to Preussomerins via 2-Arylacetal Anions

Jacques P. Ragot, Michael E. Prime, Stephen J. Archibald, and Richard J. K. Taylor
pp 1613–1616
Publication Date (Web): May 02, 2000 (Letter)
DOI: 10.1021/ol005881t

Vanadium-Catalyzed Asymmetric Cyanohydrin Synthesis

Yuri N. Belokon', Michael North, and Teresa Parsons
pp 1617–1619
Publication Date (Web): May 05, 2000 (Letter)
DOI: 10.1021/ol005893e

Synthesis of Periphery-Functionalized Dendritic Molecules Using Polylithiated Dendrimers as Starting Material

Peter Wijkens, Johann T. B. H. Jastrzebski, Paul A. van der Schaaf, Roman Kolly, Andreas Hafner, and Gerard van Koten
pp 1621–1624
Publication Date (Web): May 10, 2000 (Letter)
DOI: 10.1021/ol0059100

Regiocontrol in an Intramolecular Schmidt Reaction:  Total Synthesis of (+)-Aspidospermidine

Rajesh Iyengar, Klaas Schildknegt, and Jeffrey Aubé
pp 1625–1627
Publication Date (Web): April 28, 2000 (Letter)
DOI: 10.1021/ol005913c

Kinetic Control in the Palladium-Catalyzed Synthesis of C2-Symmetric Hexabenzotriphenylene. A Conformational Study

Diego Peña, Agustín Cobas, Dolores Pérez, Enrique Guitián, and Luis Castedo
pp 1629–1632
Publication Date (Web): May 02, 2000 (Letter)
DOI: 10.1021/ol005916p

En Route to a Plant Scale Synthesis of the Promising Antitumor Agent 12,13-Desoxyepothilone B

Mark D. Chappell, Shawn J. Stachel, Chul Bom Lee, and Samuel J. Danishefsky
pp 1633–1636
Publication Date (Web): May 12, 2000 (Letter)
DOI: 10.1021/ol0059302

On the Total Synthesis and Preliminary Biological Evaluations of 15(R) and 15(S) Aza-dEpoB:  A Mitsunobu Inversion at C15 in Pre-Epothilone Fragments

Shawn J. Stachel, Mark D. Chappell, Chul Bom Lee, Samuel J. Danishefsky, Ting-Chao Chou, Lifeng He, and Susan B. Horwitz
pp 1637–1639
Publication Date (Web): May 25, 2000 (Letter)
DOI: 10.1021/ol005932m

A Rhodium(II) Catalytic Approach to the Synthesis of Ethers of a Minor Component in a Tautomeric Set

Jakob Busch-Petersen and E. J. Corey
pp 1641–1643
Publication Date (Web): May 03, 2000 (Letter)
DOI: 10.1021/ol005964+

A Facile Synthetic Route to a Third-Generation Dendrimer with Generation-Specific Functional Aryl Bromides

Zhishan Bo, Andreas Schäfer, Peter Franke, and A. Dieter Schlüter
pp 1645–1648
Publication Date (Web): May 06, 2000 (Letter)
DOI: 10.1021/ol005972q
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