ACETO ACETIC ESTER 55 



When treated with paraldehyde and sulfuric acid it gives dihydrocollidin 

 dicarboxylic ester, 



CH3 

 I 



C 

 / \ 

 CH3 CH CCO2 Q, H5 . 



CH3 CH ceo, C, H5 



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- 

 carbox5'lic esters and a compound C12 H15 NO2 , to which is attributed 

 the formula 



NH, NH 



CH C — CH — C — O — C,H5 CH— C CH,— COC, H, 



II III! or II I I II ^ • 



C C = C C — H C C=C C— H 



O — C, H5 O — C. H5 



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



■ Original article not consulted. 



CHANLAROFF, MOEHSIN BEQ, 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 : 



CH3COCHNaC03C,H,+ CH,C1CH,0H=CH3C0CHC0,C,H5 . 



CH,CH,OH 



