2,2′-Bis(methoxymethoxy)-3-methyl-1,1′-binaphthyl
نویسندگان
چکیده
The title compound, C(25)H(24)O(4), a meth-oxy-methyl (MOM) bis-protected BINOL derivative containing a methyl substituent in position 3, is a key inter-mediate for the synthesis of a great variety of chiral auxiliaries. The planes of the naphthyl aromatic rings are at an angle of 70.74 (3)°. There are no conventional hydrogen bonds binding the mol-ecules.
منابع مشابه
(R)-2,2′-Bis(methoxymethoxy)-1,1′-binaphthyl
The asymmetric unit of the title compound, C(24)H(22)O(4), contains two independent mol-ecules in both of which the naphthalene ring systems adopts a transoid arrangement. The dihedral angles between the naphthalene ring system in the two mol-ecules are 83.0 (1) and 89.0 (1)°. There are slight differences in the C(H(3))-O-C(H(2))-O- torsion angles of the eqivalent meth-oxy-meth-oxy groups. In t...
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The title compound, C(32)H(20)N(2)O(6), was synthesized by the reaction of 1,1'-binaphthyl-2,2'-diol and 4-nitro-phenol in the presence of K(2)CO(3). The two naphthalene systems make a dihedral angle of 73.70 (5)°. The crystal packing involves mol-ecules connected by C-H⋯O hydrogen bonds into a chain along the c axis.
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In the title compound, C(26)H(18)O(2), the mol-ecule is located on a twofold rotation axis. The two naphthyl ring planes in the mol-ecule are nearly perpendicular to each other [dihedral angle = 82.42 (1)°. No classical hydrogen bonds or aromatic π-π stacking inter-actions were observed.
متن کامل(+)-Chlorido[(1,2,3,4-η;κP 2′)-2′-diphenylphosphanyl-2-diphenylphosphoryl-1,1′-binaphthyl]rhodium(I) methanol monosolvate
In the title complex, [RhCl(C(44)H(32)OP(2))]·CH(3)OH, the Rh(I) ion is coordinated by a naphthyl group of a partially oxidized 2,2'-bis-(diphenyl-phosphan-yl)-1,1'-binaphthyl (BINAP) ligand in a η(4) mode, one P atom of the diphenyl-phosphanyl group and one Cl atom. The P=O group does not inter-act with the Rh(I) ion but accepts an O-H⋯O hydrogen bond from the methanol solvent mol-ecule.
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The complete mol-ecule of the title compound, C(26)H(22)O(2), is generated by a crystallographic twofold rotation axis. The dihedral angle between the planes of the two symmetry-related naphthalene ring systems is 69.05 (4)°, while that between the naphthalene ring system and the allyl plane is 13.7 (2)°. No hydrogen bonds or aromatic π-π stacking inter-actions are observed.
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