which on- mixing ‘with santenone | ecaibaienie’ likewise gave no 
point depression. From the alcohol “isocamphenilol” derived from this “iso- 
nphenilone” there was prepared, by oxidation with potassium permanganate; an 
m.p. 170 to 171°, which constant was not altered after mixing with santenil acid. 
’ aS is clear from the results of this investigation that doubtless the hydrocarbon 
originating from camphenilyl chloride or from camphenilol contains santene; probably 
F ; contaminated with apobornylene. 
 Fenchene. — G. Komppa and R.H. Roschier!y, some years ago, entomaed the syn- 
: hesis of a-fenchene by starting from rac. «-fenchocamphorone. Recently’), they 
. stigated the products formed from rac. @-fenchocamphorone by analogous treatment. 
’ en it is acted upon by methylmagnesium iodide, the latter ketone gives rise to 
1ethyl- 8-fenchocamphorol (II) m.p. 66 to 67°; b.p. 77° at 9 mm.), the phenylurethane 
f which melts at 133.5 to 134°. On heating with potassium hydrogen sulphate, a 
mixture of hydrocarbons results from methyl @-fenchocamphorol, which consists ‘in 
‘main of rac. 8-fenchene (lll) (b.p. 151 to 153°; doo 0.8596; mp0 1.46581) and an 
The latter is identical with the hydrocarbon obtained from rac. fenchylalcohol and 
potassium hydrogen sulphate. | | 
_ The endocyclic fenchene discovered by Roschier?) in a different connection shall 
r be termed d-fenchene or isofenchene. The hydrocarbon (Ill) designated by the 
iors as #-fenchene was named by Semmler isofenchene, by Wallach D,d- or 
. CH: Fh CH 
(CHC | CH: = (CH3)2C7— | CH 
= CHE» CH, | 
ree tL tO H.C ee tic 
CH: . Ps Chas Se 3 
(I) 8-Fenchocamphorone. (I) Methyl -fenchocamphorol. 
PCH: | | Ran 
(CHC | CH, (CHC | CH 
CH, | wr CH, 
ieee Gch te ariel) ech, 
tot Eh ; CH 
(Ill) B-Fenchene. 9 (IV) y-Fenchene. 
 Oymene. —We wish to draw the attention of our readers to a publication of 
" entine oil was freed from an impurity, possibly a terpene, by shaking with sul- 
es acid; the purified cymene had the constants: b.p. 176 to 176.69; deo 0.8575; 
Np 290 1.4908; thioamide, m.p. 114°. On oxidation, ROA AU IN einai acid was 
a Ans. Mead. Scient. Fennicw, Ser. A, vol. x. 8 (1916), 3; Chem. Zentralbl. 1917, I. 751; Report October 
. — *) Ann. Acad. Scient. Fennicw, Ser. A, vol. X. 15 (1917), 622; Chem. Zentralbl. 1918, 1. 622. — 
- Acad. Scient. Fennice, Ser. A, vol. X. 15 (1917), 1; Chem. Zentralbl. 1918, A. 622, — 4) Comp. Report 
ov ember 1908 , 190. — *) Journ. Amer. chem. Soc. 39 (1917), 2071. 
1 Sr alia ese aoa is 
ocyclic fenchene termed y-fenchene (IV) (b. p. 146 to 148°; aie 0.8539; np2x0 1 46063). 
ocy 
W. Schorger*) on the action of aluminium chloride on cymene. So-called sulphite 
ir a 
i 4 z 4 ia i 7 4, 7 
Lam : Fie 34 Dida Fy oe | v ; 
ee Oe ee NS te. yt! iat on at ; im / : ; 
hi Ae cow z * Asis AL RE. Cc le 1s wave Sig =) ‘Vis 4 : 1 17 
. : a e A bid) Bar ' , 4 
' : a j ; , 
fenchene. What now is termed a or isofenchene had been beta isoallofenchene +A 
toe 
+ . 
