Add time:08/10/2019         Source:sciencedirect.com

Planar chirality has been introduced into chiral ferrocenecarboxamides via an amide-directed ortho-lithiation with diastereoselectivity of up to 99%. The use of an easily accessible, camphane-based chiral auxiliary as an ortho-directing group led to single diastereoisomers with a variety of electrophiles. The approach allows the preparation of widely applicable ferrocene derivatives.

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