Large-Scale Synthesis of New Pyranoid Building Blocks Based on Aldolase-Catalysed Carbon-Carbon Bond Formation
作者:Michael Wolberg、Ben H. N. Dassen、Martin Schürmann、Stefan Jennewein、Marcel G. Wubbolts、Hans E. Schoemaker、Daniel Mink
DOI:10.1002/adsc.200800224
日期:2008.8.4
A newlarge-scale approach to the synthetically versatile chloromethyl-substituted, α,β-unsaturated δ-lactone 3 is described. The synthesis is based on a biocatalytic process performed on an industrial scale. Conjugate addition of C-, N-, O-, and S-nucleophiles to lactone 3 affords a variety of newpyranoidbuildingblocks in a highly diastereoselective manner. The operational simplicity of the whole