Emil Erlenmeyer

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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Erlenmeyer, Emil

 

Born June 28, 1825, in Wehen, near Wiesbaden; died Jan. 22, 1909, in Aschaffenburg. German organic chemist.

A student of J. von Liebig’s, Erlenmeyer graduated from the University of Giessen in 1851. He was a professor at the University of Heidelburg from 1863 to 1868 and at the Polytechnikum in Munich from 1868 to 1883. He became a member of the Bavarian Academy of Sciences in 1873.

In 1865, Erlenmeyer obtained isobutyric acid, and in 1868 he synthesized guanidine. In 1880, independently of A. P. El’tekov, he established the spontaneous conversion of enols into isomeric aldehydes and ketones (seeELTEKOV RULE), and in 1866 he proposed the structural formula of naphthalene. Erlenmeyer studied the pinacol rearrangement in 1881. He established the structure of many organic compounds, mainly alcohols and carboxylic acids, and he synthesized several α-amino acids, including tyrosine (1883). Erlenmeyer introduced the use of the Erlenmeyer flask and the gas furnace into organic elemental analysis.

REFERENCES

Guia, M. Istoriia khimii [2nd ed.]. Moscow, 1975. (Translated from Italian.)
Bykov, G. V. Istoriia organicheskoi khimii: Otkrylie vazhneishikh organicheskikh soedinenii. Moscow, 1978.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
There was also bilateral femural, tibial, and fibular cortical thickening along with dense, diffuse, symmetrical sclerosis, Erlenmeyer flask deformity, and cranium-based sclerosis.
The most common radiological signs are disseminated sclerosis at the skull, vertebrae, pelvis, or appendicular bones, "bone-in-bone" sign at the vertebra and phalanx, bone modeling defects at the metaphyses of long bones, for example a funnel-like appearance (Erlenmeyer flask deformity), and sandwich vertebra sign.
DISCUSSION: Pyle's metaphysical dysplasia have a peculiar radiological findings due to defect in metaphysial remodeling which leads to grossly widened metaphysis of long bones with cortical thinning and osteopenia (Erlenmeyer Flask deformity) (5,6,7) especially in distal femur, proximal tibia, distal radius & ulna, proximal humerus, medial end of clavicle & sternal end of the ribs.