In the present work, a series of new N’-[{5-(4-aryl) 1,3-thiazol-2yl}carbohydrazide-methyl]- 3(4-arylimino) indol-2-one analogs (5a-g) had heen synthesized from 3-(4-arylimino)-2-oxo- 1-indole-acetylthiosemicarbazide (4a-g) in ethanol, in the presence of phenacyl bromide or substituted phenacyl bromides. The compound 5e was characterized by its elemental analysis, IR, 1 HNMR and Mass Spectrosco...

B. A. SRINIVASAN (From the King Institute, Guindy, Madras) uf all the various precip'j^^bed, Kahn syphilis that have been ad0pted as the standard test has come to + laboratories, precipitation test of choice in specificity To secure uniformity of sensi Y tails have Of the reaction, many WP? preparation of to be adhered to, of which ^ adjustthe antigen, finding the correct titre a ,{ ment for se...

HENRIQUE MIGUEL PEREIRA,∗†‡ ** GUY ZIV,§ AND MURILO MIRANDA∗†‡ ∗German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany †Institute of Biology, Martin Luther University Halle-Wittenberg, Am Kirchtor 1, 06108 Halle (Saale), Germany ‡Centro de Biologia Ambiental, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisboa, Port...

Silicon containing pyridine and quinoline sulfides have been prepared using phase transfer catalytic system thiol/alkyl halide / solid KOH/18-crown-6 / toluene. The target S-ethers were isolated in yields up to 81%. The cytotoxicity of the synthesized compounds was studied. Among pyridine sulfides S-[3-(1-methyl- 1-silacyclohexyl)propyl] derivatives 5e and 6e exhibit the highest cytotoxicity. A...

Cycloalkanones were utilized in the Lewis acid catalyzed peroxyacetalization of ss-hydroperoxy homoallylic alcohols (prepared by the ene reaction of the allylic alcohols mesitylol and methyl 4-hydroxytiglate, respectively, with singlet oxygen) to give spiroannulated 1,2,4-trioxanes 5a-5e and 9a-9e, respectively. A second series of 3-arylated trioxanes 10a-10h, that are available from the hydrop...

and 9b, were prepared as reported in the ref3). The other pivaloyloxymethyl esters, 9c, 9d and 9e, were prepared via another procedure, which is shown in Scheme 2. Other esters llp~ llw were prepared in the manner similar to that of 9e from the sodium salt of 5e and the corresponding halides. The latter halides were prepared from chloromethyl chlorosulfate (or chloromethyl iodide) and the corre-

Influence of wood density in tree-ring based annual productivity assessments and its errors in Norway spruce O. Bouriaud, M. Teodosiu, A. V. Kirdyanov, and C. Wirth Forest Research and Management Institute, Station Câmpulung Moldovenesc, Calea Bucovinei 73b, 725100 Câmpulung Moldovenesc, Romania V. N. Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, 660036 Russia Institute of Bi...

German Centre for Integrative Biodiversity Research (iDiv) 6 Halle-Jena-Leipzig, Deutscher Platz 5e, 04103 Leipzig, Germany 7 Institute of Ecology, Friedrich Schiller University Jena, Dornburger-Str. 8 159, 07743 Jena, Germany 9 Johann-Friedrich-Blumenbach Institute of Zoology and Anthropology, 10 Georg-August-Universität Göttingen, Berliner Str. 28, 37073 Göttingen, 11 Germany 12 Department of...