1915
DOI: 10.1002/cber.19150480276
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Über die chemischen Bestandteile der schwefelreichen, bituminösen Teeröle (Ichthyolöle). I

Abstract: Ale solche kam bisher auder der lange bekannten durch Destillation von 8-Oxybuttersiiure mit Schwefelsiiure noch die von K o m n en o s l) in Betracht. Malonsiiure wird mit Paraldehyd und Essigsaureanhydrid erhitzt. Hierbei zerfallt die zunachst gebildete Athplidenmalonsiiure in Kohlensiiure und Crotonsiiure. Zur Darstellung ungesiittigter Siiureo speziell der Sorbinsiiure aus Malonsiiure ist von D o bn e r ' ) Pyridin als Kondensationsmittel verwandt worden. Die von ihm angegebene Vorschrift wurde nun dahin a… Show more

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Cited by 28 publications
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“…The ter Meulen method has been generally accepted in Germany and has been successfully applied to the determination of nitrogen in technical products, such as hides, leather, albumen, yeast, etc. (3,11,13). It has not been used to any great extent in this country because of the difficulties encountered in putting it on a routine basis due to the short life of the catalyst.…”
Section: Discussionmentioning
confidence: 99%
“…The ter Meulen method has been generally accepted in Germany and has been successfully applied to the determination of nitrogen in technical products, such as hides, leather, albumen, yeast, etc. (3,11,13). It has not been used to any great extent in this country because of the difficulties encountered in putting it on a routine basis due to the short life of the catalyst.…”
Section: Discussionmentioning
confidence: 99%