20862-03-7Relevant articles and documents
In situ evaluation of lipase performances through dynamic asymmetric cyanohydrin resolution
Sakulsombat, Morakot,Vongvilai, Pornrapee,Ramstroem, Olof
experimental part, p. 1112 - 1117 (2011/04/16)
A dynamic resolution process based on multiple reversible cyanohydrin formation coupled to lipase-mediated transesterification is demonstrated. The resulting process resulted in the efficient evaluation of complex lipase performances in asymmetric cyanohydrin acylate synthesis. Dynamic systems were generated and resolved in situ, and the effects of the reaction conditions could be directly monitored for the overall system. By this concept, the enzyme activity, chemo- and stereoselectivity for all involved substrates could be simultaneously evaluated.
Dibutyltin dimethoxide-catalyzed cyano transfer to aldehydes and imines
Yanagisawa, Akira,Matsumoto, Takuya,Kushihara, Naoyuki,Yoshida, Kazuhiro
experimental part, p. 2918 - 2922 (2011/01/05)
A novel reaction involving cyano transfer from benzophenone cyanohydrin to aldehydes and imines was realized by using dibutyltin dimethoxide as a catalyst. Various cyanohydrins and α-amino nitriles were obtained in moderate to high yields by this reaction. Ketimines also showed remarkable reactivity as cyano acceptors under conventional reaction conditions. This catalytic reaction was further applied to a three-component condensation reaction of aldehydes, aniline, and benzophenone cyanohydrin in the presence of Drierite. Copyright