83575-15-9

Upstream product

• 74-90-8 hydrogen cyanide 
• 83575-17-1 benzyl 4-(2'-5'-benzoquinonyl)butanoate 
• 59701-65-4 4-(2,5-dihydroxyphenyl)-4-oxobutanoic acid 
• 1084-74-8 3-(2,5-dimethoxybenzoyl)propionic acid 
• 77267-97-1 4-(2'-5'-dihydroxyphenyl)butanoic acid 
• 83575-16-0 benzyl 4-(2'-5'-dihydroxyphenyl)butanoate 
• 150-78-7 1,4-dimethoxybezene 

Relevant academic research and scientific papers

THE HYDROCYANATION OF FREE AND POLYMER-BOUND BENZOQUINONE

The polimer-bound quinone 2 has been prepared and used in column form with organic solvents for the convenient preparation of other quinones.In contrast to the solution reaction hydrocyanation of this quinone by the Thiele-Meisenheimer reaction did not yield a useful proportion of polymer-bound dicyanohydroquinone but instead gave a mixture of products including much monocyanohydroquinone.Helferich and Bodenbender's 2,3-dicyanocyclohexan-1,4-dione is in fact wholly the di-enol and is a likely intermediate in the hydrocyanation of benzoquinone, being oxidised by the latter to 2,3-dicyanocyclohex-2-ene-1,4-dione which tautomerises to the observed product, 2,3-dicyanohydroquinone.A lower accessibility to polymer-bound reactants as compared with those in solution is implied by these results.