A Manual of the Chemistry of the Carbon Compounds

THE CARBON COMPOUND!*. 277
( Gl
CgHjo -J ,Q^> is prodticed by shaking diallyl with an aqueous solution
of hypochlorous acid.
When diallyl is heated with concentrated hydriodic acid, the compound
CJO8 is obtained as a heavy, oily liquid; on heating this
d iy wita ith silver acetate att it i is i converted into isoliexem diaatate, which
is isomeric with hexene diacetate, and yields with caustic potash
isohexene alcohol CaH12(OH)8, a liquid which is soluble in water and
boils at about 212°.
Diallyl dissolves in cold concentrated sulphuric acid to a clear
liquid; on addition of water, isolwxne oxide C6H12O separates out as
a light limpid liquid, boiling at 95°, and possessing an ethereal and
refreshing smell resembling that of peppermint.
Diallyl or isohexine is isomeric with hexoylene or hexine; the
constitution of these two hydrocarbons is represented by the following
formula;:—
Hexilif. lsolii-siiic.
CH3
4
Ull.
II
CH2
C:H3
CH2
CH.,
C CH
I I
CH CH,
Diallylem or Diprapine ClfeC - CH, - C=CH—This hydrocarbon
has been obtained by heating isohexine tetmbromide with
alcoholic potash. It is a limpid and very refractive liquid, boiling
nt 85°, and combining most energetically with bromine. In. an
aqueous solution of silver nitrate it produces u white amorphous
precipitate, which when heated explodes below 100°,
The other members of the acetylene aeries have been obtained
either from the dibronrides of the corresponding olefiues or from
analogous substitution products, Thus cenanthylidene has been
formed by acting with potash on oenantludene dibromide (see page
234) j rutylene was prepared from diamylene, and the isomeric do
ceirylene ftom the dibromo-substitution product of the hydrocarbon
CjoHjg, which exists in petroleum.
EKYTHR1TE C4H»(OH)«.
This compound is the only known alcohol of a tetrad radical; it
exists iu a sea-weed, called Ptolococcus vulgarig, and as ether of
oraelltc acid in different kind? of lichens (Rocelfa species).
CH