30 BIBLIOGRAPHY OF 



GABRIEL, S., 1881. 



Ber. 14. 919-927; J. Chetn. Soc. 40, 733; Jsb. Chem. 1881, 798; 



Bull. Soc. chim. 36, 598. 

 Condensation Products of Phthalic Anhydrid. 



Acetoacetic ester, phthalic anhydrid, Ce H 4 (CO) 2 O, and sodium 

 acetate react together to form ortho-tri-benzoyl-benzene, C 27 H I2 O 3 , 

 and a compound, C I2 H 8 O 2 , the composition of which is unknown 

 which boils at 209 to 211 Ortho-tribenzoyl-benzene has the constitu- 

 tion : 



HANTZSCH, A., 1881. 



Ber. 14, 1637-1638; J. Chem. Soc. 40, 1028 ; Jsb. Chem. 1881, 586; 



Bull. Soc. chim. 36, 569. 



Condensation Product of Aldehyde=ammonia and Acetoacetic 



Ester. 



Acetoacetic ester treated with aldehyde-ammonia in presence of zinc 

 chlorid gives C I4 H 2 i NO 4 which melts at 131 and boils at 310 Boiled 

 with hydrochloric acid it is entirely decomposed, treated with . dry hy- 

 drochloric acid gas it gives two bases, C It H I7 NO 2 , and Cg H I3 N. It 

 combines with bromin to form C I4 H I9 Br 4 NO 4 , and this treated with 

 nitric acid gives d 4 H I5 Br 4 NO 4 , which melts at 102. C I4 H 2I NO 4 can 

 be oxidized to the base, d 4 H I9 NO 4 , which is the ester of collidine- 

 dicarboxylic acid and has the formula C 5 N (C H 3 ) 3 (CO 2 C 2 H 5 ) 2 . 



DEICHMULLER, A., 1881. 



Ann. Chem. 209, 22-30 ; J. Chem. Soc. 4 1162 ; Jsb. Chem. 1881, 1054. 



Diabetic Urine. 



The author decides that the substance in diabetic urine which 

 produces a red color with ferric chlorid is acetoacetic acid, not the ester 

 of that acid because by acidification and distillation acetone but no 

 alcohol is obtained. 



