112 BIBLIOGRAPHY OF 



TIEMANN, F., 1889. 



Ber. 22, 241 2-241 7 ; J. Chem. Soc. 58, 44. 



Action of Acetaldehyde and Acetoacetic Ester on Benzenyl- 



amidoxim. 



J t. 1 -^ • ^ Tx ^ -^ N — OH 



Acetoacetic ester and benzenyl-amidoxim, L6 H5 L . j^jj 



react to form benzenylaceto-ethenylazoxim, 



Ce H5 C V Tv^ _______ CCH2 COCH3 . 



Alkalis decompose it, forming benzenyl-ethenyl-azoxim, 

 Ce H5 C ^ j^ ________.CCH3 , 



and acetic acid. The oxim, 



Ce H5 C^^^^CCH, C : (NOH) CH3 , 

 and the hydrazone, 



Ce H5 cf ^^2^CCH, C : (N, H C6 H5) CH3 , 

 were also described. 



BUCHKA, K. AND C. SPRAGUE, 1889. 



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

 Thioacetoacetic Ester. 



This substance, CizHisOeS, melts at 76° and forms a sodium 

 derivative C12 H16 Na2 OeS. 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, 



NHNC6 H5 

 II 

 C — CO, 



\ 

 NC6H5 



/ 



CH3C = N 

 and a yellow substance which appears to be Cio Hg N2 SO. The 

 compound which Schonbrodt describes as phenylmethyl-nitrosopyra- 

 zolone is identical with phenylmethyl-pyrazolonazobenzene. Thio- 

 acetoacetic ester unites with paratolylhydrazin and a-naphthylhydrazin 

 yielding a series of complicated compounds in each case. 



