= Sa = 
36 REPORT OF SCHIMMEL & Co. OCTOBER 1914/ APRIL 1915. 
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In the oils from Pinus pabasiris: caprylic, capronic and oenanthic acids may possibly a 
be present, esterified with borneol. The presence of dextro-rotatory «-pinene in the 
oil from the cones of Pinus palustris is ; interesting, as the needles and lb of this 
conifer contain /-a-pinene. 
In a later publication Schorger') describes the oil from needles and twigs, and 
the one from the bark, of Abies concolor, (Gord.) Parry. This conifer is found in the 
mountainous districts of the western United States. From needles and twigs he obtained 
an average of 0,128 p.c. of an oil of the following figures: dis. 0,8720 to 0,8777; 
&p2,0 — 20,11 to — 27,949; npjis0 1,4781 to 1,4796; acid v. 1,01; ester v. 12,52 to 27,34; 
ester v. after acetylation 47,84 to 55,51. The following bodies were found in the oil: 
furfurol (colour reaction with aniline hydrochloride); 12 p.c. /-a-pinene (nitrolpiperidine, 
m. p. 118,5°); 8 p.c. l-camphene (conversion to isoborneol); 42 p.c. J-8-pinene (nopinic 
acid, m. p. 126,5 to 127°); 15 p.c. /-phellandrene (nitrite, m. p. 102°); 9,5 p.c. /-borneol 
(oxidation to camphor, semicarbazone, m. p. 236 to 237°) and a green oil of the b. p. 
from 240 to 310°. Borneol also occurs in the oil in the form of its acetate; acetic 
acid was characterized by its silver salt. 
The bark of Abies concolor contains 0,095 p.c. of oil (diso 0,8767 and 0,8702; 
O&p90 — 20,95 and — 20,15°; npis0 1,4833 and 1,4809; acid v. 1,22 and 0,87; ester v. 6,38 
ard 6,43; ester v. after acetylation 23,34 and 20,45) the composition of which is as 
follows: furfurol (colour reaction with aniline hydrochloride); 9 p.c. /-e-pinene (nitrol- 
piperidine, m. p. 118°); 60 p.c. J-8-pinene (nopinone semicarbazone, m. p. 188°); about 
13 p.c. of dipentene (dihydrochloride, m. p. 49 to 50°; a solid bromide was not obtained) 
as well as 7 p.c. of a green oil of a boiling point 250 to 300°. 
From the needles and twigs of Pinus ponderosa, Laws. (western yellow pine) 
Schorger’) obtained 0,04 to 0,126 p.c. of a light yellow to green volatile oil showing: 
b. p. 161 (ord. pressure) to 185° (35 mm.); dis0 0,8718 to 0,8849; a0 — 15,73 to 
— 19,59°; npis0 1,4789 to 1,4838; acid v. 0,67 to 2,36; ester v. 3,88 to 8,1; ester v. after 
acetylation 24,11 to 35,68. The oil contained probably about 2 p.c. of J-a-pinene 
(nitrosochloride, m. p. 102,5°) and as principal constituent 75 p.c. of J(-8-pinene 
(nopinic acid, m. p. 120°; nopinone semicarbazone, m. p. 188°). There were also found: 
6 p.c. of dipentene (tetrabromide, m. p. 124°) and presumably also 7 p.c. borneol 
(oxidation to camphor; m.p. could not be ascertained owing to smallness of quantity 
of camphor). The oil contained 3,1 p.c. of a high-boiling green body (b. p. 155 to 185° 
at 35 mm.): di500,9270; &px50—8,39°. Formic and acetic acids (silver salts) were 
present in the free state as well as in the form of ester. 
From the cones of Pinus ponderosa, Schorger distilled 0,063 p.c. of a light green 
oil, of the b.p. of 164 to 290°; dis0 0,8757; &px0 — 11,489; Npis0 1,4789; acid v. 1,27; 
ester v. 7,2; ester v. after acetylation 22,41. 
Furfurol was present in the lowest-boiling parts (colour reaction with aniline 
hydrochloride). Of further constituents there were: 6 p.c. J-a-pinene (nitrosochloride, 
m. p. 103°); 60 p.c. l-8-pinene (nopinic acid, m. p. 126 to 127°); 12 to 13 p.c. of di- 
pentene (dihydrochloride, m. p. 50°) and the high-boiling green oil found in the oil 
from the needles. 
Furthermore, Schorger describes the oil from the needles and twigs of Pinus 
Lambertiana, Dougl. (sugar pine), the turpentine oil of which he had examined at an 
earlier date*). The yield was 0,045 to 0,120 p.c.; b. p. 158 to 250°; diso 0,8676 to 
0,8738; @p20— 11,07 to —16,50°; np0 1,4777 to 1,4795: acid v. 0,68 to 2,38; ester v. 
eC 
1) Journ. Ind. Eng. Chemistry 6 (1914), 809. — 2) Ibidem 893. — #) Comp. Report April 1918, 101. a 
