Several synthetic approaches to neolignans with a C(8)–O–C(4′) linkage are described. Although direct introduction of a chiral aryloxy ether bond at the 8-position of protected phenylpropane derivatives was not successful, an efficient method for the synthesis of a chiral aryloxy ether bond has been developed, starting from a tartrate derivative.
K. Li and R. F. Helm, J. Chem. Soc., Perkin Trans. 1, 1996, 2425 DOI: 10.1039/P19960002425
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