112 BIBLIOGRAPHY OF 



TIEMANN, F., 1889. 



Ber. 22, 2412-2417 ; J. Chem. Soc. 58, 44. 



Action of Acetaldehyde and Acetoacetic Ester on BenzenyF- 



amidoxim. 



Acetoacetic ester and benzenyl-amidoxim, Ce H 5 C ^ ^jj 

 react to form benzenylaceto-ethenylazoxim, 



C6 H 5 C ^ I icCH 2 COCH 3 . 

 Alkalis decompose it, forming benzenyl-ethenyl-azoxim, 



^6 1 5 

 and acetic acid. The oxim, 



C 6 H 5 C^ N~ ^CCH 2 C : (NOH) CH 3 , 

 and the hydrazone, 



C 6 H 5 cf ^ 2=CCH 2 C : (N 2 H C 6 H 5 ) CH 3 

 were also described. 



BUCHKA, K. AND C. SPRAGUE, 1889. 



Ber. 22, 2541-2556 ; J. Chem. Soc. 58, 28. 

 Thioacetoacetic Ester. 



This substance, C I2 H l8 O 6 S, melts at 76 and forms a sodium 

 derivative C I2 H l6 Na 2 O 6 S. Schonbrodt has proven that the sulfur is 

 joined to the a-carbon atom and not to oxygen. Phenylhydrazin 

 reacts with it to form phenylmethyl-pyrazoloneketo-phenylhydrazone 

 or phenylmethyl-pyrazolonazobenzene, 



NHNC 6 H 5 

 II 



C CO , 

 \ 

 NC 6 H 5 



CH 3 C = N 



and a yellow substance which appears to be C IO H 8 N 2 SO. The 

 compound which Schonbrodt describes as phenylmethyl-nitrosopyra- 

 zolone is identical with phenylmethyl-pyrazolonazobenzene. Thio- 

 acetoacetic ester unites with paratolylhydrazin and -naphthylhydrazin 

 yielding a series of complicated compounds in each case. 



