ethylenic

This very simple process - which requires a minimum of equipment, is quite safe and usually needs but little supervision - then seemed to be applicable to a whole series of important cases, namely the transformation of unsaturated ethylenic or acetylenic hydrocarbons into saturated hydrocarbons, and the transformation of nitro derivatives into arnines.

Paul Sabatier - Nobel Lecture 1966

Ni — H which would be incapable of reacting with benzene, though active in respect of ethylenic hydrocarbons or nitro derivatives.

Paul Sabatier - Nobel Lecture 1966

As typical easy hydrogenation processes I might mention those of the ethylenic hydrocarbons or of the nitro derivatives.

Paul Sabatier - Nobel Lecture 1966

Some ten years ago Ipatief had pointed out that alumina readily splits alcohols into ethylenic hydrocarbons and water by catalysis.

Paul Sabatier - Nobel Lecture 1966

This, sometimes known also as the diene synthesis, consists in the reaction of a diene with a second component which has carbonyl or carboxyl groups adjoining an ethylenic bond, to give unsaturated cyclic compounds.

Otto Diels - Biography 1964