142010-77-3Relevant academic research and scientific papers
Chiral zirconium catalysts using multidentate BINOL derivatives for catalytic enantioselective Mannich-type reactions; ligand optimization and approaches to elucidation of the catalyst structure
Ihori, Yoichi,Yamashita, Yasuhiro,Ishitani, Haruro,Kobayashi, Shu
, p. 15528 - 15535 (2007/10/03)
Catalytic enantioselective Mannich-type reactions of silicon enolates with aldimines were investigated using chiral zirconium catalysts prepared from Zr(OtBu)4, N-methylimidazole, and newly designed multidentate BINOL derivatives. Th
EXPEDIENT ROUTE TO 3- AND 3,3'-SUBSTITUTED 1,1'-BI-2-NAPHTHOLS BY DIRECTED ortho METALATION AND SUZUKI CROSS COUPLING METHODS
Cox, Paul J.,Wang, Wei,Snieckus, Victor
, p. 2253 - 2256 (2007/10/02)
A directed ortho metalation-based route to 3- and 3,3'-substituted binaphthols 2a-c and 3a-c, including chiral materials, is described.Using the Suzuki cross coupling process, dibromo system 3a (E = Br) has been transformed into 3,3'-diaryl binaphthols 5.
