ACETO ACETIC ESTER 67 



CH3 

 produces the compound of the formula C — N (03115)2 . The methyl- 



CH 



CO2 C._ H5 



amin product when treated with paraldehyde and sulfuric acid forms 

 a condensation product C15 H23 NO4 , resembling dihydro-collidin 

 dicarboxylic ester. 



HALLER, S., 1885. 



Ber. 18, 706-709; J. Chem. Soc. 48, 818; Jsb. Chem. 1885, 1082. 



Trimethyl=quinizin Derivatives. 



The following derivatives of acetoacetic ester were described : — 

 pseudo-cumylizinacetoacetic ester, C15 H22 O2 N2 , which melts at 77°- 

 78° and has the constitution : — • 



CH3 



C N— NH 



/ \ / \ 1 

 HC C CCH3 ; 



I I I 



CH3C CH CH2 



\ / \ / 

 C CO2 C2 H5 



CH3 



tetramethyl-oxyquinizin, Cg NH3 (CH3)4 ONH, [(CH3)4 = i ■.3:4:2'] ;^< 



pentamethyl-oxyquinizin (pseudo-cumylantipyrine) Cg NH3 (CH3) 4 



ONCH3 , [(CH3)3 : NCH3 : CH3 : O = I : 3 : 4 : r : 2' : 4' *] and isoni- 



trosotetramethyl oxyquinizin, C12 H15 O, N3 . 



I i' 

 2 C N 



*The carbon atoms were numbered thus : — I | | , 



3C C C3 



\ /' X / 



C C 



4 4' 



