OF ARTS AND SCIENCES. 



311 



and 



(II.) 



H3C-HOC,, 

 H5C2O2C-C-C-CO-CH2 



h/ H 



/ 

 H2C-CO-C C-CO2C2H5 



^ COH-CH3 



and that these are then converted into the hydroquinoues, 



H 



H 



HO 



OH HO-C-CH 



-C-CO2C2H5 



H 



HoC-C-OH HO 



H 



and 



HsCsOqC-C- 



-C-CO2C2H5 



OH HO-C-CH3 



H 



(two of the hydrogen atoms in the addition product (II.) being taken 

 up by quinone, forming hydroquinoue). 



The hydroquinones just as the corresponding hydroquinones obtained 

 above from chloranil, then lose water under the influence of the dehy- 

 drating agent present, and go over into the benzofurfuran derivatives, 



H 



HO 



H 



and 



O H 



H«C 



H5C2O2C 



C02C2Hg 



'CH« 



H 



