ACETO ACETIC ESTER 2^ 



KONIQ, HEINR., 1879. 



Ber. 12, 768-770; J. Chem. Soc. 36* 706 ; Jsb. Chem. 1879, 662. 



Action of Hydrocyanic and Hydrochloria Acids on Methyl=aceto= 



acetic Ester, 



Just as these acids act on acetoacetic ester to produce oxypyrotartaric 

 acid so the}' act on meth3d-acetoacetic ester and produce the next high- 

 er homologue, oxyadipic acid thus : CH, CO CH (CH,) CO2 C, H.-f 

 HCN = CH3 COH (CN) CH (CH3) CoJ C^ H5 and then CH3 C OH 

 (CN) CH (CH3) CO3 C2 Hg-f 2 HCl + 2 H2 0=CH3 COH ( CO2 H) CH 

 (CH3) CO, H + N H4 CI + C2 H5 CI. 



LADENBURG, A. AND L. RUGHEIMER, 1879. 



Ber. 12, 953-954; J. Chem. Soc. 36, 715 ; Jsb. Chem. 1879, 435. 

 Acetoacetic Ester Derivatives of Ortho=tolylendiamin. 



Ortho-tolylendiamin Ce H3 CH3 (NH,), reacts with acetoacetic ester 

 to formCs H3 CH3<^^> C <^^3C03 C, H,, a ,soHd, melting at 82° 



It is insoluble in water, soluble in alcohol and svich solvents; when heated 



N =^ 

 it decomposes into ethenyl-tolylendiamin Ce H3 CH3<^tt CCH3, 



a solid which melts at 198°- 199° 



ALLIHN, F., 1879. 



Ber. 12, 1298-1300; J. Chem. Soc. 36* 915 ; Jsb. Chem. 1879, 627. 

 Chlorinated Metal Derivatives of Acetoacetic Ester. 



The chlorinated metal derivatives, corresponding to the formula 

 (CH3 CO CCl CO, C3 Hs)^ M, may be produced by shaking the 

 monochlor-acetoacetic ester with an ammoniacal solution of the salt. 

 The copper, magnesium, nickel, and cobalt salts were described. The 

 dichlor-acetoacetic ester will give no metal derivatives. 



