Journal
TETRAHEDRON LETTERS
Volume 46, Issue 22, Pages 3829-3830Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2005.03.193
Keywords
ortho-formylation of phenols; Jacobsen ligand; salen ligands
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Phenols are converted to salicylaldehydes with paraformaldehyde, MgCl2-Et3N in THF, and subsequently treated with (+)-(R,R)-1,2-diammoniumcyclohexane mono-(+)-tartrate salt affording the corresponding salen ligands in high yields. The reactions are conveniently carried out as a one-pot procedure. © 2005 Elsevier Ltd. All rights reserved.
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