The condensation of acetylene and simple monoalkyl acetylenes with aliphatic ketones has been investigated by a number of workers. Practical condensations have been effected with sodamide in ether, calcium carbide-potassium hydroxide in ether, 3 powdered potassium hydroxide in ether4 and sodium in liquid amm~ nia.~ The very high yields of carbinol obtained from tetrahydroionone and acetylene, using potassium t-amylate as condensing ...