ROLE OF BILE IN LIPID ABSORPTION 



101 



Table 14 



Melting Points and Coordination Numbers of Choleic Acids with Cyclic 



Alcohols, Hydrocarbons, and Ketones as Acholic Components." 



Coordination 

 Acholic component M.p., °C. number 



Alcohols: 



Phenol (?) 



Phenylethylethanol 6 (?) 



Cholesterol (?)<= 155-157 (?) 



Hydrocarbons: 



Benzene* 161-163 (?) 



Xylene* 180-182 (?) 



Naphthalene" 2 



Anthracene" 1 193 4 



Phenanthrene''' e 184-185; 186-187 3 



Acenaphthene' 175.5-176.5 2 



i,£-Benzanthracene e ' / 198-199 3 



/,£,.5,i5-Dibenzanthracene e 223-224 4 



7,#-Benzpyrene° — 



Methylcholanthrene* 193.5-194.5 4 



Hexahydromethyl('holanthrene e 191 .5-192.5 4 



Dipentene 6 192 3 



Cetylbenzene A 189-189 . 5 8 



p-Hydroxyphenyloctadecane'' 171 8 



Ketones 



Benzovlaeetone 1 ' 185 3 



Dibenzoylmethane " 199 . 5-200 . 5 3 



Cinnamoylmethane d 190. 5-191 . 5 4 



Dicinnamovlmethane d 195-196 6 



Dicinnamoylacetone d 191 .5 6 



Anthrone 1 ' 179 4 



Camphor 7 ' 178-179 1 



Camphor-' 179-180; 183 2 



Estrone* — 



Benzaldehyde°' c 155 (?) 



a Most of the data are adapted from H. Sobotka, The Chemistry of (he Sterids, Williams 

 ami Wilkins, Baltimore, 1938, p. 112. 



h H. Sobotka and A. Goldberg, Biochem. J., 26, 905-909 (1932). 



« A. W. Downie, L. Stent, and S. M. White, Brit. J. Exptl. Pathol, 12, 1-9 (1931). 



d W. Marx and H. Sobotka, J. Org. Chem., 1, 275-279 (1936). 



f L. F. Fieser and M. S. Newman, ./. Am. Chem. Soc. 57, 1602-1604 (1935). 



5 Also called ^,3-benzphenanthrene. 



' A. Winterstein and H. Vetter, Z. physiol. Chem., 230, 169-174 (1934); cited by H. 

 Sobotka, The Chemistry of the Sterids, 1938, as ,?,4-benzpyrene. 



h H. Rheinboldt, P. Braun, E. Flume, O. Konig, and A. Lauber, /. prakt. Chem., 153, 

 313-336 (1939); Chem. Abst., 34, 113 (1940). 



*' H. Sobotka and J. Kahn, Biochem. J., 26, 898-904 (1932). 



' H. Rheinboldt, O. Konig, and E. Flume, Z. physiol. Chem., 184, 219-224 (1929). 



k H. Wieland, W. Straub, and T. Dorfmuller, Z. physiol. Chem.. 186, 97-103 (1929). 



