346 Wisconsin Academy of Sciences , Arts and Letters. 
(NO 
The a-Nitroso-derivatives , 29 C 10 H 16 ■] crystallize in. 
( N (N O) C 6 H 5 , 
white blunt needles and melt at 142°. Their solutions deviate the ray 
of polarized light in the direction as do the underlying bases, but the 
action is lessened, viz.: [n] = + 46.20° resp. — 47.82° 
Dipentene-a-nitrolanilid crystallizes from a mixture of alcoholic solu¬ 
tions of equal parts of the limonene derivatives and melts at 125-126°. 
The dipentene nitroso-compound 29 is obtained in the same way from its 
components. It is less soluble than the latter, crystallizes better, i. e., 
in triangular tablets and melts at 147°. 
The Nitrolanilids, like the nitroso-chlorides, are unsaturated compounds 
and can take up a molecule of hydrogen chloride. The u-hydrochlor 
(NO 
addition products, C 10 H 17 Cl s are identical with the hydro- 
(nh.c 6 h 6 
chlor nitrol anilids to be described later. 
(NO 
(3-Nitrolanilids™ C 10 H 16 ] 
(nh.c 6 h 5 . 
The limonene /3-nitrolanilids are somewhat filty needles, which are 
almost insoluble in water and petroleum ether, readily soluble in hot 
benzol, but difficultly in cold benzol and in ether, more readily soluble 
in alcohol and chloroform. Whereas the solutions of the /3-compounds 
are not.precipitated. The latter thus appear to be stronger bases. Melt¬ 
ing-point 152°. Optically they act in a direction opposite to that of the 
underlying hydrocarbons and thus differ from the /3-derivatives. 
dextrogyrate-limonene /3-nitrolanilid [cr] =■—89.39°. 
lsevagyrate-limonene /3-nitrolanilid [n] =+87.17°. 
Their nitroso-derivatives- 9 , however, which melt at 136° again turn the 
plane of polarized light corresponding in direction to that of the under¬ 
lying hydrocarbon. Their specific rotatory power is by (about) 10° 
stronger than that of the corresponding a derivatives: 
dextrogyrate-/3-nitrol-nitroso-anilid [or] = + 57,67° 
laevogyrate-/3-nitrol-nitroso-anilid [or] — — 57,75° 
Dipentene (3 nitrol nitroso anilid , obtained from its optically active 
components, does not crystallize well and melts at 129° . 
The /3-hydrochlor addition products 30 differ from the n-compounds and 
have thus far not been obtained from the hydrochlor-nitrosochlorides. 
