Tetrahedron

Regioselective reductive demethoxylation of 3, 4, 5-trimethoxystilbenes

U Azzena, G Dettori, MV Idini, L Pisano, G Sechi

Index: Azzena, Ugo; Dettori, Giovanna; Idini, Maria Vittoria; Pisano, Luisa; Sechi, Grazia Tetrahedron, 2003 , vol. 59, # 40 p. 7961 - 7966

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Citation Number: 30

Abstract

Selective removal of the 4-methoxy group of 3, 4, 5-trimethoxystilbenes was performed under electron transfer conditions from Na metal in THF. Careful control of reaction conditions and quenching procedure allowed the synthesis of either (E)-3, 5- dimethoxystilbenes or 3, 5-dimethoxybibenzyls.