2210. MCMILAN, W. A. (The Texas Co.). Catalyst for Reaction of Carbon Monoxide and Hydrogen With Unsaturated Compounds. United States Patent 2,578,144, Dec. 11, 1951. Chem. Abs., vol. 46, 1952, p. 2270.

Carbonylic compounds are produced by causing olefins, CO, and H₂ to react at 38° -204° and 200-5,000 p. s. i. in the presence of a Co salt of acetyl acetone (I). Cobaltous acetyl acetonate is advantageously freshly prepared by forming Co (OH)₂ from Co (NO₃)₂ and NaOH. After filtration and washing, the precipitate is caused to react with acetyl acetone to produce rose-colored crystals, which are recrystallized from acetone. The (I) is advantageously introduced into the reactor in solution in a solvent, such as EtOH. In an example, 209 gm. (I) was mixed with 240 gm. of 1-hexylene, and CO and H₂ in a 1:1 ratio were charged into the reactor until the pressure had reached 2,400 p. s. i. The batch was heated to 149° while agitating, and stirred for 12 hr. more while additional CO and H₂ were added to maintain the pressure 1,290-2,400 p. s. i. Of the product 324 gm. was hydrogenated over Raney Ni at 177° and a H₂ pressure 3,700-5,600 p. s. i. for 74 hr. The hydrogenated product yielded a 54% fraction consisting largely of a mixture of Me hexyl alcohol and heptyl alcohol.

MEISENHEIMER, K. See abs. 1944, 3260.