Studies on Organic Microanalysis. XXI

The Present Status of Organic Elemental Microanalysis

The influence of instrumental analysis, i.e., physicochemical methods, has become increasingly important in organic chemistry, but organic elemental microanalysis is by no means an obsolete field. On the contrary, with the development of new methods, the organic chemist obtains the results that he needs for a first orientation on a compound, more quickly and more reliably than ever before. Toda...

Acetylene Chemistry: “acetylenic Tree” in Organic Synthesis on the Eve of Xxi Century

В первой статье, посвященной химии ацетилена [1], были рассмотрены строение и реакционная способность алкинов, включая строение и реакции π -комплексов алкинов с переходными металлами. Высокая реакционная способность С ≡ Си ≡ С–Н-связей в алкинах делает их участниками разнообразнейших реакций, составляющих основу раздела органической синтетической и промышленной химии, который называется “химия...

Studies on echinococcosis. XXI. Electron microscopical observations on general structure of larval tissue of multilocular Echinococcus.

Studies of drugs given before anaesthesia. XXI. Droperidol.

Droperidol 5 mg and 10 mg and diazepam 10 mg were compared in premedication studies with morphine 10 mg and saline. Droperidol caused less hypnosis than either morphine or diazepam, and its use was associated with a much higher incidence of anxiety among patients than was observed in the group who had received saline only. Dizziness and restlessness were also significant features of the action ...

Studies on Palladium Catalysed Organic Transformations

6 Acknowledgements 7 Abbreviations 8