The proof given by K ra f ft for the terminal position of the double bond in cetene is not complete, as during the formation of cetyne-1 from cetene dibromide the possihility was not precluded of a rearrangement under the influence of powdered KOH. In the present paper it is demonstrated that: 1. This rearrangement does not take place: 2. During the preparation of cetyne-2 from cetene dibromide under the inhence of alcoholic KOH cetyne-1 is the first reaction product. This ...
