SAY yay A Peas aoe Tete Wists haat ip. 
ee we) ’ as ait 
ua C AND OTHER NOTES ON be holt 7 
ipa Sea ee ub ia ee 
re, ES a tH eet , yatta 
att Sees 
pre sO ifferent bos — the ‘ethyl ee rae feumceepistdeuts 
_ Inactive ma la : served | as starting material, it was to be expected 
at this preparation was” 5 mixture. The glucoside of ‘mandelic’ amide, obtained from 
At 
w and i-mandelic amide. — The mandelic amide glucoside is easily ‘transformed into 
_ showed the ‘melting points: — d-isomeride, 125 to 126°, Lisomeride, 139 to 140°. 
2. in order to compare them with the synthetic. preparations, the authors have” 
_ prepared the acetates of l-mandelic nitrile glucoside and of sambunigrine. The former 
a _ compound was obtained by action of yeast extract on amygdaline. The acetates of 
the natural as well as of the synthetical bodies showed the same melting points. 
_ LMandelonitrile glucoside, obtained by Fischer and Bergmann by saponification | of 
B epcical rotation of 51.99 to-— 54.59, whereas Hérissey_ states 2252. 6° and 546° © 
Fischer and Bergmann have not decided the question whether prulaurasine is: 
a conditions it may occur as uniform body (by partial racemisation). However, they — 
=" ~ succeeded i in splitting up their preparation, by crystallization, into two pure glucosides. 
a ‘SG They obtained, furthermore, from prulaurasine, by crystallization’ from amyl alcohol — 
- ~ and benzene, sambunigrine of the correct melting point; the tetracetate also showed — 
the properties expected; the mother liquor contained the glucoside of l-mandelic nitrile, 
3 _ which \ was identified by its constants and by its ee 
ay 
4 ~ leaves, which K. Kafuku*) has obtained in a yield of 0.053 per ceént.; digo 0.9301, 
2 er than 30 per cent. d-camphor, 17 per cent. d-camphene®), besides cineole, an ester 
; _ of cinnamic acid; and ae also a ber HIenpene, a Beh pouine phenol, and limonene. 
Pi aiscaiacken Oil. EW. Sarit Hue published his paper on Aoree a oil Gischeced 
our cite October 1917, 20) in Sade with P. Roenisch, ina second Benedica “3 
distilled by us, for sampling purposes, from. the herb and the roots of Andropogon 
yllus, L., or A. Ischemum, Thunb. In the meantime, we prepared the same oil from - 
lanother dual sample of the same material and we communicate hereunder the results 
obtained. The spies was more SPUPIAESONY than, at first, amounting to 1.0 per cent. 
io a ae 1) Kogyo-Kioagals: Zasshi (J. chem. Ind., Tokyo) 20 (1917), 349; China: Soc. chem. Industry 38 (1917), 905. — 
s — The abstract cites, gee by mistake, camphane, — 4) Berichte 50 CD, 1823. 
3 - ; 
y y ae) , ~ \ 
ay URS Ls : : ‘ ts 43 / ’ / 4 ‘ 
; from alcohol and melts indistinctly between 102 _ 
wi h he ester ‘by action of methylalcoholic ammonia, is as well as: the ester a ‘compound 4 
| ay two isomerides : which may. be separated by crystallization from pyridine. The 
glucoside of l-mandelic amide. presents itself as a viscid colourless syrup, drying up 
a dessiccator - into a brittle, glass-like mass. Emulsin splits it easily into sugar 
Sal pyridine compound. The tetracetate of the L-glucoside melts at about 161°. The | 
_ dglucoside of mandelic amide. could neither be obtained in, the crystallized state; 
its tetracetate, | melted. at 136 to 137°. The tetracetates of mandelic nitrile glucoside - S 
__ tmandelonitrile glucoside tetracetate with aid of ‘methylalcoholic ammonia, showed an | 
DE 
ey Oil OF an ‘Madedgeison Siecics In our last Beport (p. bs we dealt mith an ate ; 
_ for his prulaurasine’ from cherry laurel leaves, and Caldwell. and Courtauld Oe: eh ee 
Ef simply a mixture of d- and Lmandelic nitrile glucosides, or whether under certain a 
foe 
s Oil of Alpinia fateas The root ‘Ob Viren Nati Rosede. a ‘Zingiberacea_ ee 
a ~ occurring in tropical Asia, contains a volatile oil, of the composition and properties ee 
of which, however, only very little is known. More is known about the oil of the? a7 
¥ “ap 38.49, Npz00 1 4750, sapon. v. 9.88, sapon. v. after acetylation 36.1. The oil contains % 
~ 
