Von Baeyer, Adolph

In low doses, harhiturates act as sedatives. Barbiturates are made from harhituric acid, a weak monoprotic acid that was first prepared by the German chemist Adolph von Baeyer in 1864. The formula... 

Baekeland was not some would-be inventor but an accomplished chemist, familiar with the scientific literature. He knew that thirty years earlier Adolph von Baeyer had mixed together phenol, a chemical used as a disinfectant, with formaldehyde, a common preservative. The mixture had sizzled and foamed and produced a black tarry mess that had frustrated Baeyer because it would not dissolve in any known solvent. He couldn t even melt the stuff off his equipment. Baekeland also knew that Werner Kleeberg, in Germany, had recently developed an interest in this reaction because he had wanted to improve upon a new product called Galalith. Fellow German Adolph Spitteler had developed the product with a little help from a clumsy cat. His pet had knocked a bottle of formaldehyde into... 

Barbituric acid was first synthesized in 1864 by Adolph von Baeyer. It apparently was named at a tavern on St. Barbara s day and is derived from urea. At the turn of the century the great chemist Emil Fischer synthesized the first hypnotic (sleep-inducing) barbiturate, the 5,5-diethyl derivative, at the direction of von Mering. Von Mering, who made the seminal discovery that removal of the pancreas causes diabetes, named the new derivative of barbituric acid Veronal because he regarded Verona as the most restful city on earth. 

The rarity and reactivity of three- and four-membered rings led Adolph von Baeyer to enunciate his theory of ring strain in 1885. Alkanes normally favor tetrahedral geometry with bond angles close to 109.5°. fii... 

Johann Friedrich Wilhelm Adolph von Baeyer (1835-1917), Germany. In recognition of his services in the advancement of organic chemistry... 

In 1896 Ipatieff spent a year in Germany in the laboratory of the great Adolph von Baeyer. In the laboratory he made friends with Moses Gomberg, the discoverer of stable free radicals (University of Michigan) and Richard Wilstater, later recipient of a Nobel Prize. The three of them met in Chicago in 1933... 

In addition to receiving the Goodyear Medal (1975), Dr. Bayer also received the Adolph von Baeyer Medal... 

One of the most remarkable materials ever created by humans was synthesized from inexpensive industrial chemicals Bakelite. It is composed of the reaction products of phenol and formaldehyde. Phenol (hydroxybenzene) (CgHsOH) was discovered as a component of coal tar in 1834. It was used for a variety of medicinal purposes throughout the nineteenth cenmry. In the 1870s, Adolph von Baeyer (1835-1917) carried out systematic smdies of the reactions of phenol with aldehydes, such as acetaldehyde and benzaldehyde [30]. The reactions were catalyzed by strong acids. The products were highly viscous liquids. Baeyer was one of the leading synthetic chemists of the nineteenth century and received the Nobel Prize in 1905. 

In the early days of chemistry, especially organic chemistry, between roughly 1820 and 1895, academic genealogy was a way for proud professors (and proud former students) to show their common roots, their similar research interests and their influence upon the world of chemistry. This was a great period for organic and physical chemistry (1-7), when the students of Jons Jakob Berzelius, Friedrich Wohler, Friedrich Strohmeyer, Robert Bunsen, Justus von Liebig, Friedrich Kekule, August von Hoffman, and later of Adolph von Baeyer, Viktor Meyer, Friedrich Wilhelm Ostwald, Otto Wallach and Hermann von Helmholtz were the leaders of the chemical (and physical in the case of Helmholtz) research and education world. 

Adolph von Baeyer (1835-1917) was another major German chemist, who was somewhat difficult to link to others. His doctoral work was suggested and partially supervised by Friedrich Kekule (1829-1896), who at that time (1856-58) was an assistant of Bunsen at Heidelberg. However, the actual thesis of von Baeyer was submitted to the faculty of the University of Berlin (nominal reader was Eilhardt Mitscherlich) in 1858, and the degree was issued by this last University. Therefore, von Baeyer is linked to Kekul and Bunsen. 

Baeyer, Johann Friedrich Wilhelm Adolph von (1835-1917) German organic chemist. Baeyer worked mainly in organic synthesis and is noted for his study of the dye indigo. He started his work on indigo in 1865 and continued for 20 years he determined the structure of indigo in 1883. The structure he postulated was cor-... 

Probably the most distinguished assembly of chemists in the history of science (8) could be found at the First International Chemical Congress which was held in Karsruhe in the Kingdom of Baden in 1860. Aside from Kekule, Liebig, Wohler, Bunsen and von Baeyer, there were also present Jean Baptiste Dumas, Hermann Kopp, Adolph Kolbe, Sir Edward Frankland, Dmitri Mendeleev, Friedrich Beilstein, Lothar Meyer and Charles Friedel, all of them "academically related." It was at this meeting that Stanislao Cannizzaro, a young Italian chemist who was working in Sardinia, and a former assistant of Michel Chevreul in Paris, burst in an... 

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