Leben und Denken

Kirrmann, Ernest N.; Schweitzer, Albert; Bergel, Kurt

doi:10.2307/401262

Cited by 5 publications

(1 citation statement)

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“…On the basis of the Ilkovie equation, he calculated the first wave in each compound to be a two-electron reduction process. By reference to the present study of ehloroacetaldehydes, reduction of the bromo analogs can be explained using Federlin and eoworkers' data (14)(15)(16). Apparently, dibromoaeetaldehyde hydrate is reduced to bromoaeetaldehyde hydrate; the latter then dehydrates, and the unhydrated bromoacetaldehyde is reduced to acetaldehyde at approximately the same potential so that only one wave is observed.…”

Section: Nature Of the Reduction Processmentioning

confidence: 76%

Polarographic and Coulometric Behavior of the Chloroacetaldehydes

Elving¹,

Bennett²

1954

J. Electrochem. Soc.

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Chloral hydrate gives one apparently diffusion-controlled wave (E~/~. ~bout --1.4 v vs. S.C.E.), dichloroacetaldehyde two kinetic-controlled waves (--1.0 and --1.7 v), and chloroacetaldehyde two kinetic-controlled waves (--1.1 and -1.7 v). The chloral hydrate wave is actually controlled by a composite of diffusion and kinetic processes. Coulometric and polarographic data show that chloral hydrate is reduced to dichloroacetaldehyde hydrate; the latter dehydrates, and the unhydrated molecule is reduced to chloroacetaldehyde, which is then reduced to acetaldehyde; finally, the latter is reduced to ethyl alcohol or 2,3-dihydro• or both. This over-all reduction process forms only one wave; the acetaldehyde, whose reduction should result in a second wave, is formed in such a small amount that the wave is clearly demarcated in ammonia buffers only. Dichloroacetaldehyde is reduced to chloroacetaldehyde, which in turn is reduced to acetaldehyde with the formation of one wave; acetaldehyde reduction accounts for the second wave. Chloroaceta]dehyde's first wave is due to reduction to acetaldehyde; the second due to reduction of acetaldehyde.

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Section: Nature Of the Reduction Processmentioning

confidence: 76%