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The catalyst loading in the narrow range between 0.5 and 10 mol % determines whether an enantioselective organocatalytic aldol reaction proceeds under kinetic or thermodynamic control; high conversions and ee values can be achieved with low catalyst loadings (see scheme). Since the reaction is carried out in water, it can be combined with a biocatalytic reduction for the one-pot synthesis of 1,3-diols with d.r. >25:1 and 99 % ee. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Rulli et al. (Fri,) studied this question.