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An oxygenation pathway: The title transformation involves a two-step process: a selective oxygenation step to generate aldehyde intermediates and a subsequent condensation step to afford the imine products (see scheme). 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.
Lang et al. (Fri,) studied this question.