Build the Three-Membered Ring First, or Form the Carbon–Nitrogen Bond First?—Retrosynthetic Strategies, Route Selection, and Stereochemical Control in Cyclopropylamine Synthesis
Cyclopropylamines combine a three-membered cyclopropane carbon ring and a nitrogen-containing functional group within the same molecule. Cyclopropane possesses high ring strain and distinctive carbon–carbon bond orbital characteristics, while the nitrogen atom can participate in protonation, ...
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