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Tohoku University Technology:Novel alcohol oxidation catalyst: T12-042

Tohoku University Technology:Novel alcohol oxidation catalyst: T12-042

Enables to effectively oxidize sec-alcohol as well as n-alcohol and to oxidized with air

Alcohol oxidation is one of fundamental reactions in organic chemistry. This reaction is especially useful for synthesizing high-valueadded compounds such as medicine, pesticide, perfume and so on. Although, TEMPO and the related compounds featuring AZADO skeleton (e.g. AZADO, 1-Me-AZADO, and ABNO) are often used as alcohol oxidation catalyst , there are some problems concerning catalytic activity and reaction efficiency. This invention provides novel alcohol oxidation catalyst “Nor-AZADO” which can effectively oxidize sec-alcohol as well as n-alcohol using air as the terminal oxidant.

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Tohoku Univ. Technology :Method for producing tertiary alcohol: T22-005

Tohoku Univ. Technology :Method for producing tertiary alcohol: T22-005

Improved productivity, environmental friendliness and cost reduction

　Tertiary alcohols, such as tert-butyl alcohol (TBA), are useful as starting materials for pharmaceuticals, agrochemicals, and resins because they have higher oxidation resistance and hydroxyl group reactivity than primary/secandary alcohols. As an industrial process, there is a method of radical oxidation of isobutane under high pressure or without catalyst, but this process has problems of high energy load and low selectivity. As a solution, selective oxidation at ambient pressure using gold nanoparticle catalyst in the presence of hydrogen has been reported. However, there is concern about the risk of explosion because hydrogen and oxygen coexist in this method. 　As a result of repeated studies to solve the above problem, the inventor found that isoparaffins can be selectively oxidized using molecular oxygen as an oxidant to produce the corresponding tertiary alcohols with high selectivity and high production rate by using a solid catalyst containing a transition metal oxide of periodic table group 6~9, which does not support gold, and using water instead of conventional hydrogen. In particular, when Co3O4 was used as a catalyst, the selectivity (STAB) of TBA in the product was as high as 99%.

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