- 96 - 
Cadinene. In a note in the "Archiv der Pharmacie" 241 (1903), 
148, E. Deussen expresses the opinion that E. Grimal^) has stated 
in his work on the oil of Atlas cedar that dextro-cadinene was not 
known previous to this examination. With reference to his v/ork on 
West Indian Sandalwood oil published in the "Archiv der Pharmacie" 
238 (1900), 119, and 240 (1902), 288, E. Deussen points out that 
he had isolated dextro-cadinene already previously from this oil by 
fractional distillation. We would here remark that this reproach made 
by Deussen against Grimal is not justified, for Grimal only says 
that up to the time of his examination only Isevorotatory halogen- 
derivatives were known both of the dextro- and of the laevorotatory 
cadinene, and that a regenerated dextro-cadinene hat not yet been 
produced, — a statement which is in complete agreement with the 
actual facts. 
From the Errata of the "Comptes rendus" 136 (1903), 336, we 
find that the constants of the dihydrochloride and dihydrobromide of 
d-cadinene given in E. Grimal's work, should be corrected as follows: 
For the dihydrochloride the rotatory power in chloroform solution 
has been found as [a]D20° = + 8^54', -|-8^5i', -|- 8° 59', and for 
the dihydrobromide the mean of several determinations in acetic ether 
solution [a]£)2o° = H~ 25^40'. 
Alcohols. 
Fenchyl alcohol. As appears from earlier work done byKonda- 
kow and Lutschinin, laevo-fenchyl alcohol from dextro-fenchone yields 
with PCI5, PBr5, or with hydrohalogen acids, in addition to various 
hydrocarbons, also a mixture of haloid anhydrides which differ in their 
behaviour when split up with alcoholic potassa. From one of these 
mixtures Kondakow was able to separate a solid chloride which was 
extremely stable against the above-mentioned reagent, and which he 
jointly with Schindelmeiser^) has made the subject of a detailed 
examination. The fenchyl chloride was produced by repeated treat- 
ment of fenchyl alcohol in a solution of petroleum ether with PCI5, 
at a temperature below 0°. It showed the melting point 75°, and 
at II mm pressure the boiling point 81° to 82°. Alcoholic potash 
only split off hydrochloric acid at 180°, with formation of a high- 
boiling laevo-fenchene of the b. p. 159° to 161°, and of small quan- 
tities of a laevo-fenchyl alcohol of the boiling point 197° to 201°. 
With strong hydrochloric acid the chloride yielded a dihydrochloride 
of the melting point 49° to 51°, which with alcoholic potassa at 125^ 
formed an inactive hydrocarbon C^oH^g, boiling at 180°; the latter 
^) Compt. Rend. 135 (1902), 582, 1057. 
^) Joum. f. prakt. Chemie II. 68 (1903), 105. 
