Diazo‐ und Azoverbindungen der Fettreihe. IV. Abhandlung. Ueber das Hydrazin

Curtius, Theodor; Jay, R.

doi:10.1002/prac.18890390102

Cited by 49 publications

(7 citation statements)

References 3 publications

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“…Originally cyclic structures of type 2 were attributed to diazoacetic acid derivatives by Curtius [1] and to diazomethane by Pechmann. [2] Later, Angeli, [3] Thiele, [4] and Langmuir [5] provided evidence supporting the linear form 1.…”

Section: Introductionmentioning

confidence: 99%

Valence Isomerization between Diazo Compounds and Diazirines

Korneev

2011

Eur J Org Chem

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Diazo compounds and diazirines have been separately studied in detail and are widely used in research and for applied purposes. Although the mutual isomerization of these compounds was discovered 50 years ago, it has still been only modestly investigated. Meanwhile, this type of mutual transformation has to be taken into account on every occasion when one of these compounds is used or investigated. This review discusses all main cases of mutual isomerization between diazo compounds and diazirines with the goal of providing an impulse for its rational application, as well as describing the isomerism.

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Section: Introductionmentioning

confidence: 99%

Valence Isomerization between Diazo Compounds and Diazirines

Korneev

2011

Eur J Org Chem

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“…The name hydrazine was applied by Emil Fischer to the hypothetical substance N-JL, which he considered to be the parent substance of phenylhydrazine, isolated in 1875 (11, 11¡). Curtius isolated the first hydrazine salts in 1887 (6,6). Piloty, Fischer, Baeyer, and other workers found that hydrazine, and more especially phenylhydrazine (9), p-bromophenylhydrazine (10), and semicarbazide (2, 8) were of value in preparing derivatives of carbonyl compounds.…”

Section: Historicalmentioning

confidence: 99%

Identification of Aldehydes and Ketones: By Estimation of Hydrazine Nitrogen According to the Jamieson Method

Smith¹,

Wheat²

1939

Ind. Eng. Chem. Anal. Ed.

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The advantages of the method are the speed with which a given analysis can be carried out, the large number of determinations which can be done within a short time, and the simplicity of the procedure as compared to other existing methods. The use of the photometer makes it possible to obtain accurate readings on solutions in which the depth of color is too slight to be estimated in a colorimeter.

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“…Since the arguments concerning the structure of these compounds have been reviewed recently (332), only a brief out- line of this topic will be given here. Curtins (86) originally used the ring formula, Rx /N , which was accepted for many years until Angelí (7,8) suggested the openchain formula C=N=N Thiele (355), as a result of the work of Staudinger (337), also advocated the open-chain formula. Further work, either of a physical or chemical nature, led to ambiguous results.…”

Section: Rc-cr'mentioning

confidence: 99%