278 Mr. G. 8. Walpole. The Action of [ Oct. 22, 
(1) 2: 3-Butyleneglycoldiphenylurethane——It is sparingly soluble in cold 
alcohol, ether and benzene, crystallises in rosettes of colourless needles and 
melts at 199°5 (uncorr.). One hundred cubic centimetres of a solution in 
absolute alcohol saturated at 13° contain 1:02 grm. No evidence of optical 
activity was found in the pure material. Its hydrolysis will be described 
later (p. 280). It comprises about 90 per cent. of the whole amount of the 
reaction-product. 
0:2783 grm. gave 0°6716 grm, CO, and 0°1557 grm. H,0. 
02725 grm. gave 20:2 c.c. N at 23°5 and 766 mm. 
Found. Calculated for C,H,)0.(C,H;CNO), 
GB Ane ae hin a4 65 °79 65 °85 
AAs touhoee, 6 ‘21 6-09 
IN Ge ratte nee 8°57 8°53 
(2) 2:3-Butyleneglycoldiphenylurethane and Diphenylurea in the TPro- 
portion Ci3Hi20N2.2CigHaO4.Ne.—When the mother liquors from (1) 
were concentrated, further crops of crystals were obtained, which, recrystallised 
from hot alcohol, gave colourless prisms very similar in physical properties 
to (1), and melting at 187°°5 C. Repeated recrystallisation from alcohol did 
not alter this melting-point. .By the use of benzene as a solvent, however, 
careful fractionation of this material yielded crops melting at 235° 
(diphenylurea) and 196° (diphenylurethane of 2: 3-butyleneglycol) 
respectively. On taking pure specimens of these two substances and 
dissolving them in hot alcohol there was deposited again this complex, 
melting at 187°5. 
On analysis the following figures were obtained :— 
I, 0:1993 grm. gave 04923 grm. CO, and 0°1110 grm. H,0, 
II. 01745 grm. ,, 0°4320 grm. COz and 0:0994 erm. H20. 
I. 0:2809 grm. ,,  23°6 c.c. N (moist) at 24%5 and 765 mm. 
Il. 0:2096 grm. ,, 16°8 cc. N (moist) at 23° and 764 mm. 
Found. 
Calculated for CyyH5.N6Oo. 
I JO 
Cus eae Oe 67 °37 67 *52 67 “7 
1s eee es 6°20 6 °33 6 *U0 
Ne ee 9:48 | 9°25 | 9°67 
