ACETO ACETIC ESTER 55 



When treated with paraldehyde and sulfuric acid it gives dihydrocollidin 

 dicarboxylic ester, 



CH 3 



c 



/ \ 

 CH 3 CH CC0 2 C 2 H 5 . 



CH 3 CH CC0 2 C 2 H 5 

 \ / 



N 



CANZONERI, F. and G. SPICA, 1884. 



Gazz.* chim. 14, 448-453 ; Ber. 18, 107 (C) ; J. Chem. Soc. 48, 75. 

 Action of Am ids on Acetoacetic Ester. 



Formamid reacts with acetoacetic ester to form lutidin-mono- and di- 

 carboxylic esters and a compound C I2 H J5 NO 2 , to which is attributed 

 the formula 



NH 2 NH 



CH C CH C O C 2 H 5 CH C CH 2 COC 2 H 5 



I II or II II H 



C C = C C H C C=C -C H 



O C 2 H 5 O C 2 H 5 



The results of the reaction when acetamid is used will be given later. 



Original article not consulted. 



CHANLAROFF, MOEHSIN BEG, 1884. 



Ann. Chem. 226, 325-343 ; Ber. 18, 26 (C) ; J. Chem. Soc. 48, 374. 



Butyrolactone. 



This is quite a long article on butyrolactone which is produced from 

 acetoacetic ester as follows : 



CH 3 COCHNaCO 2 C 2 H 5 + CH 2 C1CH 2 OH=CH 3 COCHCO 2 C 2 H 5 . 



CH 2 CH 2 OH 



