70128-22-2Relevant academic research and scientific papers
ESR, ENDOR and TRIPLE Resonance Studies on Radical Reactions of 1,4-Benzoquinone and 1,4-Hydroquinone in Alkaline Methanol and Liquid Ammonia
Joela, H.,Kasa, S.,Maekelae, R.,Salo, E.,Hannonen, K.
, p. 261 - 267 (2007/10/02)
The relative signs and absolute values of the hyperfine coupling constants of different methoxy-1,4-benzoquinones were measured by ESR, ENDOR and TRIPLE resonance spectroscopy.Reactions of 1,4-benzoquinone and 1,4-hydroquinone with methanol took place in alkine methanol, giving rise to methoxy-substituted 1,4-benzoquinones.The same substitution reaction occured in a mixture of ammonia and methanol.The reactions depend on temperature and the alkali concentration.Coupling constants were assigned by the modified additivity relationship method.An extremely small linewidth of 0.014 G was measured in the ESR spectrum of deuterated 2,5-dimethoxy-1,4-benzoquinone.
