47 



and acetophenone, cnmino-desylacetophenone was prepared accordingto tlie 



equation — 



C,„H,,0, ^C,H,0=C,,H,„0,+H,0 



It is a substance melting at 145° C. With phenyl hydrazine it yields an 

 o-diazine derivative and its constitution as a 1:4 diketone was proved by 

 its yielding furfurane and pyrrol derivatives. Piperonoin, f uroin, and ben- 

 zoylcarbinol have also been used, and the interaction seems to hold for 

 them also. The products have not yet been fully investigated. 



In all cases a small amount of another, much less soluble, product is 

 formed. The equation for this action seems in the case of benzoin to be — 

 :]C,H-,-CUH+C,HsO=C,,,H,,0,+2H,() 



The examination of these products is in progress. 



Condensation op acetone witji benzoin hy means of dillte potassium 

 CYANIDE. By Alex. Smith. 



[abstract. J 

 In connection with the work mentioned in the preceding paper, experi- 

 ments were also made where the ketol was benzoin but acetone was used 

 in place of acetophenone. The main course of the interaction was an 

 entirely difterent one. A substance melting at 24G° C was produced accord- 

 ing to the e(iuation — 



:K'„H,-Ct)H+C,H,;0=C,.H,„0, 2H,0 

 It appears to possess the following constitution : 







H 

 H 

 H 



CJI-, 



C 

 / \ 

 H-C (• 



!l I 



C„H-— C C 



^ / 



c 



/ ^ 

 C.H^ OH 



It yields a monoxim and a monophenyl hydrazoue. With acetic anhy- 

 dride it yields the acetate of triphenyl phenol. From this triphenyl phenol 

 itself is obtained by saponification. Distillation over zinc dust yields the 

 hydrocarbon triphenyl benzene and the original substance yields the same 



