β Scribed by M.D. Birkett; A.T. Kuhn
No coin nor oath required. For personal study only.
Ahsbnet -The steady-state galvanostatic reduction of benraldehyde in aqueous sulphuric acid, sodium sulphate and sodium hydroxide at current densities tram 1 to 5 Adm-' was studied. A parallel platecell with forced convection was used with Pb cathode and ion-exchange membrane. The reduction products were quantitatively analysed and a reaction mechanism supporting the tindings of earlier workers is proposed, based on the partial current densitia for benxyl alcohol and hydrobenzoin formation. Evidence is advanced to suggest that absorbed intermediate species take part in the mechanism.
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## Polytatraflwrcethylee (P.T
A method is described for the electrochemical reduction of pteroylpentaglutamate which results in high yields of the fully reduced tetrahydro derivative.
2, -one] is a widely used weed controlling agent. In aqueous solutions and in 30 % v/v acetonitrile/water solutions it is reduced in two two-electron steps. In both steps protonated forms of azomethine bonds are reduced, in the more positive the 1,6-bond, in the more negative (by about 0.4 V) the 2
The electroreduction behavior of tetraphenylcyclopentadienone (tetracyclone) and some of its m,m'-and p,p'-substituted derivatives in acetonitrile was investigated. The mechanism for the electroreduction of these compounds in the absence and in the presence. of protons was proposed using the results