Tetrahedron Asymmetry p. 913 - 921 (1997)
Update date:2022-08-05
Topics:
Carreno, M. Carmen
Garcia Ruano, Jose L.
Toledo, Miguel A.
Urbano, Antonio
Enantiomerically pure (S)S-(p-tolylsulfinyl)-1,4-benzoquinones with alkyl and methoxy substituents at C-2 and/or C-3 are synthesized by CAN oxidation of adequately substituted (S)S-(p-tolylsulfinyl)-1,4-dimethoxyaromatic precursors 2 or 3. These compounds were obtained by ortho-directed metallation or bromo-metal exchange from the corresponding p-methoxyanisoles in a highly regiocontrolled manner.
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(2013)Doi:10.1016/0022-328X(68)80047-6
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