Enantiospecific synthesis and insect feeding activity of sulfur-containing cyclitols
摘要:
The first syntheses of two deoxythiocyanocyclitols (4-deoxy-4-thiocyano-1-chiro-inositol and deoxythio-cyanoconduritol F) and two deoxysulfonylcyclitol acetals are reported by a chemoenzymatic enantioselective route. The compounds were prepared by a sequence of enzymatic and ruthenium-catalyzed dihydroxylations, and the results were studied regarding reaction conditions and co-catalyst for different derivatives. The new compounds were included in a minilibrary of deoxygenated cyclitols and evaluated for their capacity to influence the feeding behavior of Epilachna paenulata (Coleoptera: Coccinellidae), a common pest of the Curcubitaceae crops. (C) 2008 Elsevier Ltd. All rights reserved.
The first syntheses of two deoxythiocyanocyclitols (4-deoxy-4-thiocyano-1-chiro-inositol and deoxythio-cyanoconduritol F) and two deoxysulfonylcyclitol acetals are reported by a chemoenzymatic enantioselective route. The compounds were prepared by a sequence of enzymatic and ruthenium-catalyzed dihydroxylations, and the results were studied regarding reaction conditions and co-catalyst for different derivatives. The new compounds were included in a minilibrary of deoxygenated cyclitols and evaluated for their capacity to influence the feeding behavior of Epilachna paenulata (Coleoptera: Coccinellidae), a common pest of the Curcubitaceae crops. (C) 2008 Elsevier Ltd. All rights reserved.