By rts © The fenckyt inate. obtained by vist was 
A Joil,.'b. p: 1620-418 mm). The’ ester was decomposed n 
: 3 heating: up to about 230°. 223 Se of ok xanthate es 
140.6 to 141 40; ame 0. 8586; fa. 0.779; + Hive me 1.45202, ‘ekeene t 
rotation, the hvdrocthon is identical with Aschan’s #-pinolene?) (see b 
‘bromine with formation of d, a-fenchene dibromide (m. Pp. 86 to sine: 
ee “according to Bertram and Walbaum it yielded I-isofenchyl alcohol. re 
a The formation of cyclofenchene from fenchyl alcohol ee. off i 
i. Mantier: = Piso ; : Bi 
“te | MG | CCH 
nes ; ad 
; : bs CH ; se ees ie Cre: 4 +o 
Te Hehe OCHOR 3) MiG Sa ch 
C-CHs iS KC CHS = ; - 
Fenchyl alcohol. : Cyclofenchene. ae 
On adding hydrogen chloride to d-c sj Hsenehene and abatincine HCI ae the hyd 
chloride by means of o-toluidine, either no cyclofenchene, or at least an only very f 
amount, is regenerated, but J, a-fenchene instead. With URE nitrite and oe 
acid, Lee gives no reaction. . 
ip Seectlene on treatment with Sohiidimet die ‘reaction “ohersy a very” eee 
for preparing /,a-fenchene. It is not necessary to purify the fenchene_ from 
xanthate, the hydrochloride being prepared directly from the crude product. 
As to the fenchenes derived from isofenchyl alcohol, work has been 
from our laboratory already years ago”). | eer ie oe 
Qvist: transformed isofenchy! alcohol into its ailonide by 1 means ae PCly ar 
decomposed it with o-toluidine, hereby: very pure d, 8-fenchene resulted. / 
alcohol was purified, inter alia, by its qr 
inc when, in-addition, the neutral pita a 
e ACH Co) CH m. p. 110 to 110,5°. nee 
| | CH, | Bohs Say 8-Fenchene, after distilling over sodium D0 c 
is Heck tat | SACH 2 CHi) & from 150 to 153°. Oxidation with KMn0. gave ri: 
aa Tie Oe . to d- -hydroxy-8-fenchenic acid, m. p.13 
Na ieee 1, B-Fenchene. | POR bromine, d,6-fenchene passed over into ; 
Rees _ dibromide (m. p. 81 to 82°) which was 
with ch a-fenchene dibromide. (Battier ‘it. es a solid nite ( 
TS es a 
ake) 1) Liedig’s Annalen 387 (1912), 34; Report Apri 1912, 188, ae ee : 
BOL Cheba I. 61 (1900), 303 ; Report April 1900, 56. , 2» ayn und “Kon 
Baers ss: bindungen, aS ea, Berlin 1900 Pp. 939.\ pea aiey ass oe : : 
