I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chementator Briefs
Natural wax coating Researchers from Aalto University (Finland; www.aalto.fi) have…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment PDF Processing & Handling

Chementator: A commercial breakthrough in alcohol oxidation    

By Gerald Ondrey |

Nissan Chemical Industries Ltd. (Tokyo, Japan; edlinks.chemengonline.com/7373-538) is commercializing "ultrahighly active" catalysts, based on the catalyst technology developed by professor Yoshiharu Iwabuchi of the Graduate School of Pharmaceutical Sciences, Tohoku University (Sendai, Japan), which catalyzes the oxidation of alcohols into carbonyl compounds. Conventional catalysts, such as 2,2,6,6-tetraethyl piperidine-N-oxyl (TEMPO) derivatives, are ineffective for oxidizing sterically hindered alcohols, limiting their applicability to primary alcohols. The activity of the new catalyst is said to be about 20 times greater than TEMPO derivatives, and yields are typically over 90% at low (0°C) temperature with low catalyst loading of 0.01 mol% in most cases, which leads to fewer side products and lower operating costs. The new catalysts are 2-azaadamantane N-oxyl (AZADO) derivatives (diagram), which are made by a four-step synthesis that was developed cooperatively by Nissan Chemical and professor Iwabuchi. AZADO derivatives are characterized by nitroxy radicals, which, when combined with inexpensive co-oxidizers such as sodium hypochlorite and sodium chlorite, show a "remarkable" catalytic efficiency for the…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Improving chemical production processes with IIoT and AI technologies
New filtration technology for highly corrosive media
PTA production: Lowering OPEX without compromising on quality
Sure that zero means zero in your zero-liquid discharge (ZLD) process?
How separation processes profit from Industrial Internet of Things (IIoT) solutions

View More

Live chat by BoldChat