Synthesis and structural characterization of BINOL-modified chiral polyoxometalates.

Chapter- 5 Synthesis and characterization of chiral BINOL anchored on mesoporous SBA-15 and MCF for the enantioselective allylation reaction

Synthesis of triphosphorous bidentate phosphine-phosphoramidite ligands: application in the highly enantioselective hydrogenation of ortho-substituted aryl enamides.

The development of new effective chiral ligands is fundamental to asymmetric hydrogenation. Over recent decades, many excellent bisphosphine ligands have been reported for highly enantioselective hydrogenation reactions. However, the modification of a desired structural motif of most bidentate ligands is impeded by multistep synthesis. Recently, this situation has been partially remedied by the...

Total Synthesis of Chiral Falcarindiol Analogues Using BINOL-Promoted Alkyne Addition to Aldehydes.

An enantioselective total synthesis of chiral falcarindiol analogues from buta-1,3-diyn-1-yltriisopropylsilane is reported. The key step in this synthesis is BINOL-promoted asymmetric diacetylene addition to aldehydes. The two chiral centers of the falcarindiol analogues can be produced by using the same kind of catalyst with high selectivity, and the final product can be obtained in only six s...

Synthesis of novel BINOL-derived chiral bisphosphorus ligands and their application in catalytic asymmetric hydrogenation.

Some novel ortho-substituted BINOL-derived bisphosphorous ligands (o-BINAPO and o-NAPHOS) were synthesis from readily available (S)-BINOL; these ligands showed excellent enantioselectivities (up to 99% ee) in Rh(I)-catalyzed asymmetric hydrogenation of functionalized olefins.

Synthesis and Characterization of BINOL Based Axially Chiral Nitronyl Nitroxide Radicals.

Four novel axially chiral nitronyl nitroxides derived from S- or R-1,l'-bi-2-naphthol were synthesized and their crystal structures discussed. Circular dichroism spectra of these compounds showed significant Cotton effects between 200 and 400 nm, and also confirmed the optical activity of these enantiomers. The magnetic properties of the two pairs of nitronyl nitroxide radicals were characteriz...