181 



The acetate is boiled upon a water-bath with alcoholic potassium hy- 

 droxide for fifteen minutes. The mixture resulting is poured into excess of 

 dilute hydrochloric acid, and a white mass is obtained. The amorphous 

 phenol is recrystallized from hot alcohol. It forms white needles, which 

 melt at 155°, It is readily soluble in cold chloroform, benzene and ether, 

 but sparingly soluble in hot ligroin (10-60°). 

 Calculated as C27Hl'40. Found. 



C 89.00 88.9(5 



H 6.60 6.87 



II. ADDITION OF BEXZOIN TO AXISYLIDEN ACETONE. 



.i-4-iH[>hitiijJ-'>-aiii»ijl-.i-o.iii-i\2 kcto-R-lu'.ii'iic. 

 CH .CsHUOCHj) 



CHs .C. lOH) 



CcHs .C 



.CH, 



CO 



. CII 



The 3-4-diphenyl-5-anisyl-4-oxy-^^-keto-R-hexene is prepared by 

 the condensation of one molecule (6 gr.) of benzoin, eitlier with one mole- 

 cule (5 gr. ) anisylidenacetone, or with one molecule each of anisaldehyde 

 (3.9 gr.) and of pure acetone ^1.7 gr. ) under exactly the same conditions 

 which were uj^ed in tlie preparation of 3-4-diphenyl-5-cumyl— l-oxy-A^2~ 

 keto-R-hexene. The substance crystallizes in bunches of needles, either 

 from hot glacial acetic acid, or absolute alcohol, and melts at 233.5°. 

 However the amount of alcohol required is large — for each gram, 70cc. of 

 hot absolute alcohol are required. It is soluble in hot benzene and cliloro- 

 form, but insoluble in ether and ligroin (40-60^). With cold concentrated 

 sulphuric acid, a deep red coloration is produced. 



Calculated as C.^H.^Oa. Found. 



C 81.08 80.91 



H 5.95 6.03 



O.I i III iif tlic .>-4-(lii>JicniiI-.'j-!(iUK!il-4-0.r(/-^ .^-keto-R-Jn'.ri'ue. 

 For the preparation of the oxim, a method, analogous to that described 

 in the preparation of the oxim of 3-4-diphenyl-5-cumyl-4-oxy- _ 2~^^<^o- 

 R-hexene, is used. After recrystallization from liot alcoliol, it melts at 196°. 



