カテコール類のエチレン化

抄録

Ethylenation of catechol (Ia), pyrogallol (Ib), 1, 2-dihydroxy-3-methoxy-4, 5-methyl-enedioxybenzene (Ic), 1, 2-dihydroxy-4, 5-methylenedioxybenzene (Id), and 1, 2-dihydroxy-4-nitrobenzene (Ie) with ethylene chloride showed the effect of kinds of solvents and bases used, and yields varied greatly according to reaction procedures. It was found that ethylenedioxy derivatives can be obtained in a good yield from cheap ethylene chloride during a short, time, when the concentration of Ia-e was regulated below 1M in the reaction system (according to the authors' procedure).