98 
corresponding to: 
1) 62780, C and 3:620/, H 
2) DAB DL) e 
D) vl 7 LOL 
4) 62:84), 2) ” 393°, N 
D) 62°82°/, nun 367%, » 
middle 6279040 BDNt nn 
whereas theoretically for the formula C;, H,, 0, the following va- 
lues are expected: 62:930/, C and 3'49°/, H. 
Tetra-Acetyldatiscetin. 
The attempt to convert datiscetin into an acetylderivative suc- 
ceeded easily applying Liebermanns method. The solution eontaining 
an excess of anhydrous acetie acid was treated first with a suffi- 
cient amount of alcohol to decompose the former and poured into 
a large quantity of water. A resinous mass remained undissolved 
which after several days solidified into an amorphous brittle sub- 
stance. The purification of the erude product was attained by se- 
veral erystallisations from ether. Quite white needles were thus ob- 
tained which melted at 138°. The analysis show that a tetracetyl- 
derivative was obtained. 
1) 01830 & gave 04088 & CO, and 0:'0660 & H,O 
120:1812,, , 02050 , _ 00676, 
corresponding to: 
” 
1,0 Ian 0 
2) 60960, . „ 417, 
middle 60-940, C AO EME 
whereas the formula O,, H,O, (COCH;), requires: 
C : 60-794), 
H : 3-96 0), 
The estimation of the acetylgroups contained in acetyldatiscetin 
did not give satisfactory results on account of datiscetin being itself 
attacked by the prolonged action of even comparatively dilute al- 
kalies. It was therefore desirable to get additional proofs for the 
assumption that datiscetin contains four hydroxylgroups; to this end 
we prepared the corresponding benzoylderivative. 
