• Issue

    Helvetica Chimica Acta: Volume 94, Issue 9

    1551-1741
    September 2011
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Contents

Free Access

Contents: HCA 9/2011

  • First Published: 15 September 2011

Research Articles

Novel Benzyl- or 4-Cyanobenzyl-Substituted N-Heterocyclic (Bromo)(carbene)silver(I) and (Carbene)(chloro)gold(I) Complexes: Synthesis and Preliminary Cytotoxicity Studies

Siddappa Patil,  Anthony Deally,  Frauke Hackenberg,  Leonard Kaps,  Helge Müller-Bunz,  Rainer Schobert,  Matthias Tacke, 
  • Pages: 1551-1562
  • First Published: 15 September 2011
Novel Benzyl- or 4-Cyanobenzyl-Substituted N-Heterocyclic (Bromo)(carbene)silver(I) and (Carbene)(chloro)gold(I) Complexes: Synthesis and Preliminary Cytotoxicity Studies

Stepwise Mechanism of Hydroxide Ion Catalyzed Cyclization of Uridine 3′-Thiophosphates

Mikko Ora,  Anne Hanski, 
  • Pages: 1563-1574
  • First Published: 15 September 2011
Stepwise Mechanism of Hydroxide Ion Catalyzed Cyclization of Uridine 3′-Thiophosphates

Reactions of Imidoyl Isoselenocyanates with Aromatic 2-Amino N-Heterocycles and 1-Methyl-1H-imidazole

YuehuiDong Zhou,  Anthony Linden,  Heinz Heimgartner, 
  • Pages: 1575-1585
  • First Published: 15 September 2011
Reactions of Imidoyl Isoselenocyanates with Aromatic 2-Amino N-Heterocycles and 1-Methyl-1H-imidazole

Asymmetric Mannich-Type Synthesis of N-Phosphinyl α-Aminophosphonic Acid Monoesters

Zhijia Fang,  Haohao Yang,  Zhiwei Miao,  Ruyu Chen, 
  • Pages: 1586-1593
  • First Published: 15 September 2011
Asymmetric Mannich-Type Synthesis of N-Phosphinyl α-Aminophosphonic Acid Monoesters

Two New Cytotoxic Alkaloids from Mappianthus iodoides Hand.-Mazz.

Xi-Bin Xiao,  Yue-Xing Lin,  Geng-Bo Xu,  Xu-Bo Gong,  Ying Gu,  Jie-Feng Tong,  Jing Yang, 
  • Pages: 1594-1599
  • First Published: 15 September 2011
Two New Cytotoxic Alkaloids from Mappianthus iodoides Hand.-Mazz.

Xestospongienols A–L, Brominated Acetylenic Acids from the Chinese Marine Sponge Xestospongia testudinaria

Dong Liu,  Jing Xu,  Wei Jiang,  Zhiwei Deng,  Nicole J. de Voogd,  Peter Proksch,  Wenhan Lin, 
  • Pages: 1600-1607
  • First Published: 15 September 2011
Xestospongienols A–L, Brominated Acetylenic Acids from the Chinese Marine Sponge Xestospongia testudinaria

Inclusion Complexes of Coenzyme Q10 with Polyamine-Modified β-Cyclodextrins: Characterization, Solubilization, and Inclusion Mode

Juan Gu,  Shao-Ming Chi,  Yong Zhao,  Ping Zheng,  Qiong Ruan,  Yan Zhao,  Hong-You Zhu, 
  • Pages: 1608-1617
  • First Published: 15 September 2011
Inclusion Complexes of Coenzyme Q10 with Polyamine-Modified β-Cyclodextrins: Characterization, Solubilization, and Inclusion Mode

Tin(II) Halide Insertion or Halogen Exchange in the Reactions of Dihaloplatinum(II) Complexes with Tin(II) Halide

Badri Z. Momeni,  Hoori Kazmi,  Atefeh Najafi, 
  • Pages: 1618-1627
  • First Published: 15 September 2011
Tin(II) Halide Insertion or Halogen Exchange in the Reactions of Dihaloplatinum(II) Complexes with Tin(II) Halide

A New Four-Component Reaction for the Synthesis of Spiro[4H-indeno[1,2-b]pyridine-4,3′-[3H]indoles]

Afsaneh Feiz,  Ghazaleh Imani Shakibaei,  Zahra Yasaei,  Hamid Reza Khavasi,  Ayoob Bazgir, 
  • Pages: 1628-1637
  • First Published: 15 September 2011
A New Four-Component Reaction for the Synthesis of Spiro[4H-indeno[1,2-b]pyridine-4,3′-[3H]indoles]

Secondary Metabolites from the Fungus Monascus purpureus and Evaluation of Their Cytotoxic Activity

Ming-Jen Cheng,  Ping-Hsun Yang,  Ming-Der Wu,  Ih-Sheng Chen,  Ming-Tsuen Hsieh,  Yen-Lin Chen,  Gwo-Fang Yuan, 
  • Pages: 1638-1650
  • First Published: 15 September 2011
Secondary Metabolites from the Fungus Monascus purpureus and Evaluation of Their Cytotoxic Activity

Godavarin K: a New Limonoid with an Oxygen Bridge between C(1) and C(29) from the Godavari Mangrove Xylocarpus moluccensis

Jun Li,  Min-Yi Li,  Tirumani Satyanandamurty,  Jun Wu, 
  • Pages: 1651-1656
  • First Published: 15 September 2011
Godavarin K: a New Limonoid with an Oxygen Bridge between C(1) and C(29) from the Godavari Mangrove Xylocarpus moluccensis

A Simple One-Pot Synthesis of N-Alkyl-2,5-diaryl-1,3-dioxol-4-amines

Mohammad Bayat,  Shima Nasri, 
  • Pages: 1657-1661
  • First Published: 15 September 2011
A Simple One-Pot Synthesis of N-Alkyl-2,5-diaryl-1,3-dioxol-4-amines

A Convenient Synthesis of Functionalized α-Methylidenebutano-4-lactams

Gwenaëlle Liberge,  Stéphane Lebrun,  Axel Couture,  Pierre Grandclaudon, 
  • Pages: 1662-1670
  • First Published: 15 September 2011
A Convenient Synthesis of Functionalized α-Methylidenebutano-4-lactams

New Cytochalasins from the Marine-Derived Fungus Xylaria sp. SCSIO 156

Ziming Chen,  Hongbo Huang,  Yuchan Chen,  Zhongwen Wang,  Junying Ma,  Bo Wang,  Weimin Zhang,  Changsheng Zhang,  Jianhua Ju, 
  • Pages: 1671-1676
  • First Published: 15 September 2011
New Cytochalasins from the Marine-Derived Fungus Xylaria sp. SCSIO 156

A New Phenolic Diglycoside Produced in Response to Copper Toxicity and a New Flavan Dimer from the Leaves of Viburnum ichangense (Hemsl.) Rehd.

Bin Wu,  Kuiwu Wang,  Xiaodan Wu, 
  • Pages: 1677-1684
  • First Published: 15 September 2011
A New Phenolic Diglycoside Produced in Response to Copper Toxicity and a New Flavan Dimer from the Leaves of Viburnum ichangense (Hemsl.) Rehd.

Three New Neolignans and One New Phenylpropanoid from the Leaves and Stems of Toona ciliata var. pubescens

Yu-Bo Liu,  Jiang-Jiang Qin,  Xiang-Rong Cheng,  Jia-Xian Zhu,  Fei Zhang,  Hui-Zi Jin,  Wei-Dong Zhang, 
  • Pages: 1685-1691
  • First Published: 15 September 2011
Three New Neolignans and One New Phenylpropanoid from the Leaves and Stems of Toona ciliata var. pubescens

CuBr/FeCl3 Catalysis: a Novel and Efficient Method for the Preparation of New Aryl (Iminomethyl)propargyl Ether Derivatives via CH Activation of Aryl Propargyl Ethers

Gautham Santhosh Kumar,  Chavva Kurumurthy,  Pillalamarri Sambasiva Rao,  Banda Veeraswamy,  Pamulaparthi Shanthan Rao,  Banda Narsaiah, 
  • Pages: 1692-1696
  • First Published: 15 September 2011
CuBr/FeCl3 Catalysis: a Novel and Efficient Method for the Preparation of New Aryl (Iminomethyl)propargyl Ether Derivatives via C<span class='icomoon'></span>H Activation of Aryl Propargyl Ethers

Three New Peroxy Triterpene Lactones from Pseudolarix kaempferi

Jun-Ming Tan,  Yi-Hua Qiu,  Xin-Qi Tan,  Chang-Heng Tan, 
  • Pages: 1697-1702
  • First Published: 15 September 2011
Three New Peroxy Triterpene Lactones from Pseudolarix kaempferi

A Simple Synthesis of 5-(2-Aminophenyl)-1H-pyrazoles

Monika Janjić,  Rok Prebil,  Uroš Grošelj,  David Kralj,  Črt Malavašič,  Amalija Golobič,  Katarina Stare,  Georg Dahmann,  Branko Stanovnik,  Jurij Svete, 
  • Pages: 1703-1717
  • First Published: 15 September 2011
A Simple Synthesis of 5-(2-Aminophenyl)-1H-pyrazoles

Ions Can Move a Proton-Coupled Electron-Transfer Reaction into Tunneling Regime

Cvijeta Jakobušić Brala,  Viktor Pilepić,  Ivana Sajenko,  Ana Karković,  Stanko Uršić, 
  • Pages: 1718-1731
  • First Published: 15 September 2011
Ions Can Move a Proton-Coupled Electron-Transfer Reaction into Tunneling Regime

Cytotoxic Naphtho-γ-pyrones from the Mangrove Endophytic Fungus Aspergillus tubingensis (GX1-5E)

Hong-Bo Huang,  Ze-En Xiao,  Xiao-Jun Feng,  Cai-Huan Huang,  Xun Zhu,  Jian-Hua Ju,  Meng-Feng Li,  Yong-Cheng Lin,  Lan Liu,  Zhi-Gang She, 
  • Pages: 1732-1740
  • First Published: 15 September 2011
Cytotoxic Naphtho-γ-pyrones from the Mangrove Endophytic Fungus Aspergillus tubingensis (GX1-5E)

Erratum

Free Access

Erratum: Three New Triterpenoid Saponins from Ardisia crenata

Dai-Lin Liu,  Nai-Li Wang,  Xue Zhang,  Xin-Sheng Yao, 
  • Page: 1741
  • First Published: 15 September 2011