• Issue

    Helvetica Chimica Acta: Volume 96, Issue 5

    747-1003
    May 2013
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Contents

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Contents: HCA 5/2013

  • First Published: 17 May 2013

Review

Organic Stereochemistry. Part 5†: Stereoselectivity in Molecular and Clinical Pharmacology

Bernard Testa,  Giulio Vistoli,  Alessandro Pedretti,  John Caldwell, 
  • Pages: 747-798
  • First Published: 17 May 2013
Organic Stereochemistry. Part 5

Research Articles

Stoichiometric Reactions of Enamines Derived from Diphenylprolinol Silyl Ethers with Nitro Olefins and Lessons for the Corresponding Organocatalytic Conversions – a Survey†

Dieter Seebach,  Xiaoyu Sun,  Marc-Olivier Ebert,  W. Bernd Schweizer,  Nirupam Purkayastha,  Albert K. Beck,  Jörg Duschmalé,  Helma Wennemers,  Takasuke Mukaiyama,  Meryem Benohoud,  Yujiro Hayashi,  Markus Reiher, 
  • Pages: 799-852
  • First Published: 17 May 2013
Stoichiometric Reactions of Enamines Derived from Diphenylprolinol Silyl Ethers with Nitro Olefins and Lessons for the Corresponding Organocatalytic Conversions – a Survey

Scope and Limitations of the Base-Free Copper(I) Oxide Catalyzed N-Heteroarylation of 1H-(Benz)imidazoles with B-Heteroarylboronic Acids or 2-Heteroaryl-4,4,5,5-tetramethyl-1,3,2-dioxaborolanes

Agathe Begouin,  Maria-João R. P. Queiroz, 
  • Pages: 853-863
  • First Published: 17 May 2013
Scope and Limitations of the Base-Free Copper(I) Oxide Catalyzed N-Heteroarylation of 1H-(Benz)imidazoles with B-Heteroarylboronic Acids or 2-Heteroaryl-4,4,5,5-tetramethyl-1,3,2-dioxaborolanes

Synthesis of Natural Atisane-Type Diterpenoids by retro-Biomimetic Transformations

Nicon Ungur,  Veaceslav Kulciţki,  Olga Chetraru,  Marina Grinco,  Pavel F. Vlad, 
  • Pages: 864-871
  • First Published: 17 May 2013
Synthesis of Natural Atisane-Type Diterpenoids by retro-Biomimetic Transformations

Synthesis of Thymidine, Uridine, and 5-Methyluridine Nucleolipids: Tools for a Tuned Lipophilization of Oligonucleotides

Emma Werz,  Rebecca Viere,  Gina Gassmann,  Sergei Korneev,  Edith Malecki,  Helmut Rosemeyer, 
  • Pages: 872-888
  • First Published: 17 May 2013
Synthesis of Thymidine, Uridine, and 5-Methyluridine Nucleolipids: Tools for a Tuned Lipophilization of Oligonucleotides

Unexpected Ritter Reaction During Acid-Promoted 1,3-Dithiol-2-one Formation

Frédéric Dumur,  Cédric R. Mayer, 
  • Pages: 889-896
  • First Published: 17 May 2013
Unexpected Ritter Reaction During Acid-Promoted 1,3-Dithiol-2-one Formation

Synthesis of Functionalized H-[1]Benzopyrano[2,3-b]pyridines by the Friedländer Approach: Antimycobacterial and Antimicrobial Profile

Dhaval D. Haveliwala,  Nimesh R. Kamdar,  Prashant T. Mistry,  Saurabh K. Patel, 
  • Pages: 897-905
  • First Published: 17 May 2013
Synthesis of Functionalized H-[1]Benzopyrano[2,3-b]pyridines by the Friedländer Approach: Antimycobacterial and Antimicrobial Profile

Dicyano(7-methyl-6-oxo-6H-dibenzo[b,d]pyran-9-yl)methanide Salts via a Multicomponent Reaction

Mehdi Khoobi,  Ali Ramazani,  Alireza Foroumadi,  Ali Souldozi,  Katarzyna Ślepokura,  Tadeusz Lis,  Amir Mahyari,  Abbas Shafiee,  Sang Woo Joo, 
  • Pages: 906-918
  • First Published: 17 May 2013
Dicyano(7-methyl-6-oxo-6H-dibenzo[b,d]pyran-9-yl)methanide Salts via a Multicomponent Reaction

Synthesis of New Furo[3,4-b]quinolin-1(3H)-one Scaffolds Derived from γ-Lactone-Fused Quinolin-4(1H)-ones

Raphaël Labruère,  Philippe Helissey,  Stéphanie Desbène-Finck,  Sylviane Giorgi-Renault, 
  • Pages: 919-923
  • First Published: 17 May 2013
Synthesis of New Furo[3,4-b]quinolin-1(3H)-one Scaffolds Derived from γ-Lactone-Fused Quinolin-4(1H)-ones

Benzo-Annulated Steroids: Synthesis of Octahydro-indeno-phenanthrenes by Formal [3+3] Cyclocondensation Reaction with 1,3-Bis[(trimethylsilyl)oxy]buta-1,3-dienes

Friedrich Erben,  Verena Specowius,  János Wölfling,  Gyula Schneider,  Peter Langer, 
  • Pages: 924-930
  • First Published: 17 May 2013
Benzo-Annulated Steroids: Synthesis of Octahydro-indeno-phenanthrenes by Formal [3+3] Cyclocondensation Reaction with 1,3-Bis[(trimethylsilyl)oxy]buta-1,3-dienes

Five New Steroidal Alkaloid Glycosides from Solanum tuberosum

Zhi-Qiang Zhang,  Jian-Guang Luo,  Jun-Song Wang,  Ling-Yi Kong, 
  • Pages: 931-940
  • First Published: 17 May 2013
Five New Steroidal Alkaloid Glycosides from Solanum tuberosum

Stereoconvergent Generation of a Contrasteric syn-Bicyclopropylidene (=syn-Cyclopropylidenecyclopropane) by Stille-Like Coupling

Murat Güney,  Selçuk Eşsiz,  Arif Daştan,  Metin Balci,  Ottorino De Lucchi,  Ertan Şahin,  Fabrizio Fabris, 
  • Pages: 941-950
  • First Published: 17 May 2013
Stereoconvergent Generation of a Contrasteric syn-Bicyclopropylidene (=syn-Cyclopropylidenecyclopropane) by Stille-Like Coupling

Two New Bis-alkaloids from the Aerial Part of Piper flaviflorum

Yu Wu,  Cheng-Jian Zheng,  Xue-Hong Deng,  Lu-Ping Qin, 
  • Pages: 951-955
  • First Published: 17 May 2013
Two New Bis-alkaloids from the Aerial Part of Piper flaviflorum

Efficient Synthesis of 1-Arylquinoxalin-2(1H)-ones via Cyclocondensation of N-Aryl-Substituted 2-Nitrosoanilines with Functionalized Alkyl Acetates

Zbigniew Wróbel,  Karolina Stachowska,  Andrzej Kwast,  Agata Gościk,  Magdalena Królikiewicz,  Robert Pawłowski,  Izabela Turska, 
  • Pages: 956-968
  • First Published: 17 May 2013
Efficient Synthesis of 1-Arylquinoxalin-2(1H)-ones via Cyclocondensation of N-Aryl-Substituted 2-Nitrosoanilines with Functionalized Alkyl Acetates

Natural (−)-Vasicine as a Novel Source of Optically Pure 1-Benzylpyrrolidin-3-ol

Mushtaq A. Aga,  Brijesh Kumar,  Abdul Rouf,  Bhahwal A. Shah,  Samar S. Andotra,  Subhash C. Taneja, 
  • Pages: 969-977
  • First Published: 17 May 2013
Natural (−)-Vasicine as a Novel Source of Optically Pure 1-Benzylpyrrolidin-3-ol

Mechanism of the Reaction of Amines with 5-[(Aryl- or Alkylamino)hydroxymethylene]-2,2-dimethyl-1,3-dioxane-4,6-diones in the Presence of Chlorotrimethylsilane (Me3SiCl)

Karolina Janikowska,  Sławomir Makowiec,  Janusz Rachoń, 
  • Pages: 978-984
  • First Published: 17 May 2013
Mechanism of the Reaction of Amines with 5-[(Aryl- or Alkylamino)hydroxymethylene]-2,2-dimethyl-1,3-dioxane-4,6-diones in the Presence of Chlorotrimethylsilane (Me3SiCl)

New Flavonoids from Lysimachia christinae Hance

Feifei Gao,  De Zhao,  Jun Deng, 
  • Pages: 985-989
  • First Published: 17 May 2013
New Flavonoids from Lysimachia christinae Hance

Stereoselective Synthesis of (−)-Pinidinone

Gundeti Shankaraiah,  Tiruvayamudi Vijaya Kumar,  Guvvala Venkateswara Reddy,  Janaswamy Madhusudana Rao,  Katragadda Suresh Babu, 
  • Pages: 990-996
  • First Published: 17 May 2013
Stereoselective Synthesis of (−)-Pinidinone

N-Bearing Furanone Derivatives from an Endophytic Fungus in Huperzia serrata

Jia-Gui Xiang,  Wei-Guang Shan,  Dong-E Liang,  You-Min Ying,  Li-She Gan,  Jian-Wei Wang,  Zha-Jun Zhan, 
  • Pages: 997-1003
  • First Published: 17 May 2013
N-Bearing Furanone Derivatives from an Endophytic Fungus in Huperzia serrata