n-Propanol and isopropanol can be homologated into their next homologs by hydrocarbonylation mediated by cobalt-ruthenium catalytic mixtures. For given catalyst compositions, there is a depression in conversion due essentially to a dramatic inhibition of the hydrocarbon formation, whereas the yield and the selectivity to C4 products are highest. The effect of two important parameters (iodine promotion and total pressure) are investigated. Both alcohols lead to n- and isobutanol, suggesting a possible olefinic intermediate.

1. In organ culture, brown adipose tissue of the hibernator, the European hamster, synthezises from [14C]acetate a compound which is secreted into the culture medium. 2. Gas chromatographic-mass spectrometric analysis of samples, extracted from brown adipose tissue and corresponding to that unknown radioactive compound, used as a marker, lead to the identification of the two major components as 1-monoglycerides: 1-monopalmitin and 1-monoolein. 3. The two 1-monoglycerides are also present in the blood plasma and are not of alimentary origin. 4. The problem of the significance of 1-monoglycerides in brown adipose tissue and plasma is discussed in connexion with the postulated indirect role of brown adipose tissue in thermogenic processes.