Ashokkumar, Veeramanoharan published the artcileBinaphthyl-based chiral bifunctional organocatalysts for water mediated asymmetric List-Lerner-Barbas aldol reactions, Name: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), the publication is Organic & Biomolecular Chemistry (2016), 14(38), 9021-9032, database is CAplus and MEDLINE.
Binaphthyl-based chiral bifunctional organocatalysts were designed, synthesized and successfully applied to the asym. List-Lerner-Barbas aldol reaction in the presence of water. These organocatalysts were found to be effective catalysts for the reactions of sym., unsym. and cyclic ketones with different aldehydes to give the corresponding aldol products with higher yields (up to 98%) and very good ee’s up to 99%. The catalytic system leads to higher yields and selectivities than the previously reported well-known proline based organocatalysts. In addition to the effect of solvent, additives, catalyst concentration, temperature and the substrate scope of the reactions were also investigated.
Organic & Biomolecular Chemistry published new progress about 126613-06-7. 126613-06-7 belongs to esters-buliding-blocks, auxiliary class Chiral Diphenols, name is (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), and the molecular formula is C22H12F6O6S2, Name: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate).
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