AE ae) ee 
. 86 REPORT OF SCHIMMEL & Co. Ocoee 1915.7 
and may be called apiole acraldehyde. In addition to the yellow compouhe a dole 330 
one forms, probably apiolaldehyde, which melts at about 100°. From asarone and 
nitrosobenzene, the N-phenylether of asarylaldoxime, (CH; O)3CsHe:CH:N(Cg¢Hs): 0, is me 
obtained; it melts at 125°. Besides, asarylaldehyde and azoxybenzene result. It was . Pa 
‘impossible to isolate any well-defined reaction product when nitrosobenzene was 
allowed to act on zsosafrole. 
- Paeonol. Many years ago already, Tahara*) synthetically prepared, by methylating 
resacetophenone, the phenol paeonol, i.e. the p-methylether of resacetophenone 
(p-methoxy-o-hydroxyphenylmethylketone), which occurs in the oil of Paeonia Moutan, 
Sims., (N. O. Ranunculaceae). Another synthesis of paeonol has been described by 
K. Hoesch?), who poured 30 cc. of ether over 5 g. resorcinol monomethylether, — 3 g. 
acetonitrile and 2 g. zinc chloride, and then let hydrogen chloride pass through 
the solution for 4 or 5 hours. After some time, a crystalline deposit formed, which 
ae 
OH 
Paeonol. 
Hc-0’  SCO-CH, 4 
~ 
process was completed in 4 or 5 hours. The wine-red deposit discoloured at once if 
water was poured over it. After having shaken it with ether, he distilled the aqueous 
solution with steam, when the volatile paeonol passed over, whereas the non -Vetae 
isomeric isopaeonol remained in the flask. 
Acids. a 
Caronic acid. As it is known, two dibasic acids form on oxidation of carone a 
cis- and a trans-caronic acid (gem.-dimethylcyclopropane dicarboxylic acid)*). R. Locquin*) | 
now reports on some derivatives of these acids. He describes the dimethylester of j 
the cis-caronic acid as a colourless, readily mobile liquid boiling at from 111 to 112° 
(14 mm.); the diethylester, he says, reminds one by its smell of diethyl succinate. 
Nopinic acid. On a former occasion, E. Dorronsoro and E. Fernandez believed to 
have observed an intense colouration of nopinic acid with resorcinol and sulphuric 
acid. As they®) ascertained later on, this colour reaction is not caused by nopinic 
but by the oxalic acid, which abundantly forms on oxidation of turpentine oil with 
potassium permanganate. 
| 
; 
: 
Oxides. 
The conversion of cineol into peroxides of unknown composition has been | 
mentioned on page 72 of this Report. 
Re quantitative estimation of cineol, compare page 17. 
1) Berl. Berichte 24 (1891), 2459. — 2) Ibidem 48 (1915), 1122. — 3) A. v. Baeyer and W. Ipatiew, Berl. ; 
Berichte 29 (1896), 2796. — See also Report April 1910, 176. — +4) Bull. Soc. chim. IV. 15 (1914), 747, — a 
8) An. Soc. Esp. Ph. Ch. 11 (1913), 441; Bull. Soc. Chim. 1V. 16 (1914), 300. a 
