Volume 88; Issue 2

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Helvetica Chimica Acta
Volume 88; Issue 2

Helvetica Chimica Acta

Volume 88; Issue 2

1

Thionation of N-(ω-Halogenoalkyl)-Substituted Amides with Lawesson's Reagent: Facile Synthesis of 4,5-Dihydro-1,3-thiazoles and 5,6-Dihydro-4H-1,3-thiazines

Yasuhiro Kodama, Mayuko Ori, Takehiko Nishio

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 88 KB

english, 2005

2

Conformational Analysis and CD Calculations of Methyl-Substituted 13-Tridecano-13-lactones

Elena Voloshina, Jörg Fleischhauer, Philip Kraft

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 432 KB

english, 2005

3

Rhodium(II)-Catalyzed Inter- and Intramolecular Cyclopropanations with Diazo Compounds and Phenyliodonium Ylides: Synthesis and Chiral Analysis

Ashraf Ghanem, Fabienne Lacrampe, Volker Schurig

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 267 KB

english, 2005

4

Three New Triterpenoids from Lycopodium japonicumThunb

Jian Yan, Xiang-Ming Zhang, Zhong-Rong Li, Lin Zhou, Jian-Chao Chen, Li-Rong Sun, Ming-Hua Qiu

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 76 KB

english, 2005

5

Epimerization of Lupinine to Epilupinine and vice versa. Reexamination of the Structures of Lupinal and Epilupinal

Anna Sparatore, Bruno Tasso, Vito Boido, Fabio Sparatore

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 82 KB

english, 2005

6

Two New E-Secoursane Glycosides: Bodiniosides A and B, Isolated from Elsholtzia bodinieri

Rong-Tao Li, Jin-Tong Li, Jing-Kun Wang, Quan-Bin Han, Zhao-Yun Zhu, Han-Dong Sun

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 93 KB

english, 2005

7

Three Novel 24,30-Dinortriterpenoids, Paeonenoides A–C, from Paeonia veitchii

Shao-Hua Wu, Shu-Ming Yang, Da-Gang Wu, You-Wei Cheng, Qian Peng

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 85 KB

english, 2005

8

The Effect of Backbone-Heteroatom Substitution on the Folding of Peptides – A Single Fluorine Substituent Prevents a β-Heptapeptide from Folding into a 314-Helix (NMR Analysis)

Raveendra I. Mathad, Francois Gessier, Dieter Seebach, Bernhard Jaun

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 308 KB

english, 2005

9

Dysideasterols A–E, Five New Uncommon Polyhydroxylated Steroids from the South China Sea Sponge Dysidea sp.

Xiao-Chun Huang, Yue-Wei Guo, Ernesto Mollo, Guido Cimino

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 110 KB

english, 2005

10

Hypervalent Iodine in Synthesis. Part 86 : Selective Copper-Catalyzed N-Monoarylation and N1,N3-Diarylation of Uracil and Its Derivatives with Diaryliodonium Salts

Tao Zhou, Ti-Cong Li, Zhen-Chu Chen

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 86 KB

english, 2005

11

New Triterpenoid Glycosides from Centella asiatica

Zhi-Yong Jiang, Xue-Mei Zhang, Jun Zhou, Ji-Jun Chen

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 81 KB

english, 2005

12

A New and Efficient Synthesis of Highly Functionalized (Triphenylphosphoranylidene)cyclopentadienes with Zwitterionic Resonance Structures

Abdolali Alizadeh

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 68 KB

english, 2005

13

A New Ketone and a Known Anticancer Triterpenoid from the Leaves of Onosma limitaneum

Viqar Uddin Ahmad, Farzana Kousar, Afsar Khan, Muhammad Zubair, Shazia Iqbal, Rasool Bukhsh Tareen

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 51 KB

english, 2005

14

Properties of 2,2,2-Trifluoroethanol/Water Mixtures: Acidity, Basicity, and Dipolarity

Paz Sevilla Sierra, Concepción Civera Tejuca, Francisco García-Blanco, Cristina Díaz Oliva, Javier Catalán Sierra, Gerardo Echevarría Gorostidi

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 109 KB

english, 2005

15

Three New Urea Derivatives from Pliocene-Fossil Pinus armandii

You-Xing Zhao, Cheng-Sen Li, Xiao-Dong Luo, Tie-Mei Yi, Jun Zhou

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 72 KB

english, 2005

16

Hydrindanone Synthesis: An Incisterol Model

Massimo Curini, Francesco Epifano, Maria C. Marcotullio, Ornelio Rosati, Ming Guo, Yousheng Guan, Ernest Wenkert

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 111 KB

english, 2005

17

Phenolic Compounds from Viburnum cylindricum

Xiangdong Zhu, Xujun Dong, Yifeng Wang, Peng Ju, Shide Luo

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 56 KB

english, 2005

18

Novel Reactions for the Simple and Sensitive Spectrophotometric Determination of Traces of Selenium in Environmental Samples

Kailasa Suresh Kumar, Kanchi Suvardhan, Lingaladinne Krishnaiah, Pattium Chiranjeevi

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 72 KB

english, 2005

19

Rotundifolides A and B, Two New Enol-Derived Butenolactones from the Bark of Litsea rotundifolia var. oblongifolia

Ya Zhao, Yue-Wei Guo, Wen Zhang

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 68 KB

english, 2005

20

The Behaviors of Metal Acetylides with Dinitrogen Tetroxide

Christopher J. Woltermann, Harold Shechter

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 158 KB

english, 2005

21

Why Quantum-Thermochemical Calculations Must Be Used with Caution to Indicate ‘a Promising Lead Antioxidant’

Peter Mulder, Hans-Gert Korth, Keith U. Ingold

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 58 KB

english, 2005

22

Contents: HCA 2/2005

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 77 KB

english, 2005

23

Novel Cs-Symmetric 1,4-Diphosphine Ligands in the Copolymerization of Propene and Carbon Monoxide: High Regio- and Stereocontrol in the Catalytic Performance

Antonella Leone, Giambattista Consiglio

Journal:

Helvetica Chimica Acta

Year:

2005

Language:

english

File:

PDF, 71 KB

english, 2005