A convenient route for the synthesis of a variety of salan-type compounds is introduced. The synthesis is based on a single-step Mannich condensation between readily available starting materials: primary or secondary amines, formaldehyde and substituted phenols. This methodology is suitable for the preparation of chiral salans as well, which may find applications in asymmetric catalysis.
介绍了一种合成各种Salan型化合物的简便方法。合成基于易于获得的原料:
伯胺或仲胺,
甲醛和取代
酚之间的一步式曼尼希缩合反应。该方法学也适合于手性盐的制备,其可以在不对称催化中找到应用。