Acidic proteinase from Aspergillus usamii catalyzed Michael addition of ketones to nitroolefins

A new promiscuous activity of AUAP (acidic proteinase from Aspergillus usamii) was investigated in Michael addition of cyclic and acyclic ketones to aromatic and heteroaromatic nitroolefins in organic media in the presence of water. The yields were obtained from 38% to 84%.

A new promiscuous activity of AUAP (acidic proteinase from Aspergillus usamii) was investigated in Michael addition of cyclic and acyclic ketones to aromatic and heteroaromatic nitroolefins in organic media in the presence of water. The yields were obtained from 38% to 84%.Figure optionsDownload as PowerPoint slideHighlights
► AUAP (acidic proteinase from Aspergillus usamii) catalyzed Michael addition in DMSO.
► Satisfied yields were obtained for most of the nitroalkenes with various ketones.
► The AUAP catalyzed Michael addition provides a novel case of catalytic promiscuity.