XVIII. PHENYLACETYLENE..........................67
XIX. PHENYLHYDRAZINE............................71
XX. PHTHALIMIDE.................................75
XXI. QUINOLINE..................................79
XXII. QUINONE...................................85
XXIII. SODIUM _p_-TOLUENESULFINATE................89
XXIV. 1,3,5-TRINTROBENZENE......................93
XXV. 2,4,6-TRINTROBENZOIC ACID..................95
INDEX.....................................99



ORGANIC SYNTHESES

I

BENZALACETOPHENONE

C6H5CHO + C6H5COCH3 + (NaOH)--> C6H5CH=CHCOC6H5 + H2O

Prepared by E. P. KOHLER and E. M. CHADWELL. Checked by H. T. CLARKE
and R. P. LEAVITT.

1. Procedure

A SOLUTION of 218 g. of sodium hydroxide in 1960 g.
of water and 1000 g. of 95 per cent alcohol are introduced into
a 5500-cc. bottle which is loosely covered with a perforated disk
of cardboard, supplied with an effective stirrer, and supported
in a larger vessel so as to permit cooling with cracked ice.