( 353 ) 



with flieirs, a few particiilai's of (lie rcsearcli may he comniiiiiii'ated 

 Iiei-e because, at the end of their treatise, tliey seem to want fiii-ther 

 conhrmatioiis of (heii- didit whieh ai-e opposed to those of H. Mul- 

 lere). Moreover, a few additional daUi may be mentioned here. 



The idea that CCl, ■ CO, . 6YV, and Cl^.CO. 0. 0,01, should be 

 identical is derived from Or.oiiz^). He bases his view chietly on the 

 fact that botli esters lead, with H,0 , NH^OH, alkalis, alcohol etc. 

 to the same end-products. 



Like OOh.OO.OOOk, the compound C/ . CO . 0C,C4 is also 

 converted by water into trichloroacetic acid, cai-bon-dioxide and 

 hydro?:en-chlorid^^ ; the |>h()sgene formed at tirst is decomposed by 

 watei' into 6V>, and '1 HOI. 



The reaction with N H^ , which in both cases leads to trichloro- 

 acetamide, also seems to prove such. It is, however, plaiu that by 

 accepting, — according to Cloï;/, — the spliltiug off of CO 67. as the 

 first reaction-stadium, we can obtain from both esters the same 

 products, although they are diiferendy constituted. 



CI NH„ 



O.CCl,^ NH, 



and something similar applies also to the othei- reactions he has given. 



If therefore, CloV:z's arguments cannot at all be considered as 

 final, they ma}' now, after tlie experiments of the German authors 

 and tiiose of myself, be considered as totally unsatisfactory. 



Pure, i-epeatedly distilled chloro-formic ethyl-ester was, with exclusion 

 of all moistui-e, chlorinated in bi-ight sunlight •'). From the yellow, 

 very heavy liquid the «'hlorine is expelled by OO.^ and the product 

 distilled under reduced j)ressure. As the main fractioji was obtained 

 a colourless liipiid having the same odour as CC/j . CO . CCC/, , 

 which boiled at 129° under 80 mm. pressure, at 116° under 50 mm. 

 pressure and at 104° under 22 mm. pressure. After fractionating 



1) Muller, Ann. der Chemie. 258. 61. (1890;. 



2) Cloëz, Ann. de Chim. el phys. (3). 17. 300 (184G). 



3) In these experiment.'^ I liave been zealously .'supported by ir.y assistant Mr. 

 J. B. Menke, to whom I again bring my best thanks. 



