An Efficient, Simple and Inexpensive Method for the Preparation of 1,4-Benzoquinone Monoketals<i>via</i>Anodic Oxidation of 1,4-Dimethoxybenzenes
                                
                                    
                                        作者:Elisabeth C. L. Gautier、Norman J. Lewis、Alexander McKillop、Richard J.K. Taylor                                    
                                    
                                        DOI:10.1080/00397919408010619
                                    
                                    
                                        日期:1994.11
                                    
                                    Anodic oxidation of a series of 1-substituted-2,5-dimethoxybenzenes gives 2-substituted-1,1,4,4-tetramethoxycyclohexa-2,5-dienes in almost quantitative crude yield.  Selective monohydrolysis of these bis-ketals is possible in many cases, and gives 3-substituted-4,4-dimethoxycyclohexa-2,5-dienones in good to excellent overall yield.