Preparation of hydroperoxides by autoxidation

Details Preparation of hydroperoxides by autoxidation Preparation of hydroperoxides by autoxidation

1975-03-10

1976-08-10

Thomas, Jr., James O.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260593R, 260632C, C07C17902

Patent

active

039742288

ABSTRACT:
In autoxidation of tertiary cycloalkanes and alkyl aromatics the selectivity for organic hydroperoxides can be substantially increased by using a basic or amphoteric buffering compound of a Group IIIB or rare earth metal. For example, an autoxidation of isopentane with 4 wt. percent LaO at 11.1 mole percent conversion gave selectivities of t-amyl hydroperoxides -- 75.5 mole percent, acetone -- 18.3 mole percent, and t-amyl alcohol -- 0.3 mole percent. The same reaction without the buffer at only 10.3 mole percent conversion ve selectivities of t-amyl hydroperoxide -- 30.6 mole percent, acetone -- 51.2 mole percent and t-amyl alcohol -- 14.9 percent.

REFERENCES:
patent: 2447794 (1948-08-01), Brewer
patent: 2510526 (1970-05-01), Bonnert et al.
patent: 2632774 (1953-03-01), Conner et al.
patent: 2773906 (1956-12-01), Emerson
patent: 2776994 (1957-01-01), Joris
patent: 2798096 (1957-09-01), Baumgartner

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