Gas‐Chromatographic Separation and Analysis of Isomeric Halogenated Hydrocarbons

Abstract

5-Aralkyl derivatives of (3) have been obtained in almost quantitative yields by catalytic hydrogenation (10 Pdcharcoal; dioxane; room temperature; 10 h) of the yellow 5-arylidene derivatives (4) which are readily available by the condensation of aldehydes with the active methylene group of (3), R = H. The following compounds were prepared: