Research Article: (R)-2,2′-Bis(meth­oxy­meth­oxy)-1,1′-binaphth­yl

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Liang Zhou, Wumanjiang Eli.


The asymmetric unit of the title compound, C24H22O4, contains two independent mol­ecules in both of which the naphthalene ring systems adopts a transoid arrangement. The dihedral angles between the naphthalene ring system in the two mol­ecules are 83.0 (1) and 89.0 (1)°. There are slight differences in the C(H3)—O—C(H2)—O– torsion angles of the eqivalent meth­oxy­meth­oxy groups. In the crystal, weak C—H⋯O hydrogen bonds are present.

Partial Text

For general background to the application of 1,1′-binaphthol (BINOL) derivatives in asymmetric synthesis, see: Brunel et al. (2006 ▶). For the synthesis, see: Shi & Wang (2002 ▶). For related structures, see: Tachi et al. (1999 ▶); Zong et al. (2011 ▶).