I 14 BIBLIOGRAPHY OF 



PERKIN, Jr., W. H., 1890. 



J. Chem. Soc. 57> 204-241. 

 a a'-Diacetyladipic Ester. 



Sodacetoacetic ester and ethyleue bromid react to form two products, 



CH CO CH 2 



(i) acetyl-trimethylene-carboxylic ester, QQ S R >C<! , and (2) 



a a'-diacetyladipic ester, QQ 3 R> CHCH 2 CH 2 CH <QoR 3 The 



latter compound is a thick colorless oil, rather difficultly separable 

 from impurities, which decomposes some when distilled yielding a 

 mixture of several compounds. It will give a diphenylhydrazin 

 derivative, 



L^O 2 -K. ^ OTTOTT OT-T OTT --" ^-^2 -K- 



CH 3 C (N 2 HC 6 N 5 ) ** ^ C(N 2 HC 6 H 5 )CH 3 , 



which melts at 145 and when heated higher gives bis-phenyl-methyl 

 methylene-pyrazolone, 



C 6 H 5 N NC 6 H 5 



/ \ / \ 



N CO OC N 



II I I II 



CH 3 C-CHCH 2 CH 2 CH-CCH 3 



Many other reactions and derivatives of a'-diacetyladipic ester were 

 given. 



FEIST, FRANZ, 1890. 



Ann. Chem. 257, 253-297 ; Ber. 23, 463 (C). 

 Dehydracetic Acid. 



In this long article account is given of a study of dehydracetic acid 

 made in order to determine its constitutional formula and its relation to 

 its isomers. A large number of reactions are described and a great 

 many of its derivatives are produced and their constitution determined. 

 A figure is given representing the most important reactions and a table 



