2007
DOI: 10.1002/chin.200740037
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Toni Rantanen,
Ingo Schiffers,
Carsten Bolm

Abstract: Enantioselective syntheses O 0031Solvent-Free Asymmetric Anhydride Opening in a Ball Mill. -The desymmetrization of meso-anhydrides proceeds smoothly under solvent-free conditions when the reactants (anhydride, alcohol and quinidine as mediator) are mixed in a ball mill. Even completely solid mixtures are converted. The reaction provides the corresponding monoesters of dicarboxylic acids, e.g. (III), (VI) and (VIII), in good yields and moderate enantioselectivity (up to 64% e.e.). -(RANTANEN, T.; SCHIFFERS, I…

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