Synthesis of a newly modified poly-H 8 -BINOL ligand and its applications in the asymmetric addition of triethylaluminium to aromatic aldehydes
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Research in Chinese Universities"
DOI: 10.1007/s40242-017-7093-y
Abstract: A new H8-BINOL polymer was synthesized by radical polymerization and proved to be an effective catalyst in enantioselective addition of triethylaluminium to aromatic aldehydes in the presence of titanium isopropoxide. The polymer can be prepared… read more here.
Keywords: binol; triethylaluminium aromatic; aromatic aldehydes; addition triethylaluminium ... See more keywords
Intramolecular chirality induction and intermolecular chirality modulation in BINOL bridged bisporphyrin hosts
Sign Up to like & getrecommendations! Published in 2017 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2016.11.006
Abstract: Abstract We have studied the intra- and inter-molecular chirogenesis events on a family of chiral bisporphyrin hosts H1-H3 . The three pairs of enantiomers for H1-H3 were constructed by connecting two zinc(II) porphyrinates to a… read more here.
Keywords: chirality induction; chirality; bisporphyrin hosts; binol ... See more keywords
Crown Ether-Derived Chiral BINOL: Enantioselective Michael Addition of Alkenyl Boronic Acids to α,β-Unsaturated Ketones
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DOI: 10.1021/acsomega.1c05875
Abstract: A new class of aza-crown ether-derived chiral BINOL catalysts were designed, synthesized, and applied in the asymmetric Michael addition of alkenylboronic acids to α,β-unsaturated ketones. It was found that introducing aza-crown ethers to the BINOL… read more here.
Keywords: derived chiral; ether derived; chiral binol; crown ether ... See more keywords
Synthesis and stereochemistry of helical polyurethanes based on 2,2′-dihydroxy-1,1′-binaphthyl and diisocyanatobenzenes
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DOI: 10.1039/c9py01348b
Abstract: Polyaddition between 2,2′-dihydroxy-1,1′-binaphthyl (BINOL) and 1,4-diisocyanatobenzene (14DIB) and that between BINOL and 1,3-diisocyanatobenzene (13DIB) were conducted leading to optically active, helical polyurethanes, poly(BINOL-alt-14DIB) and poly(BINOL-alt-13DIB), respectively. In BINOL-14DIB systems, cyclic dimers were formed along with… read more here.
Keywords: dihydroxy binaphthyl; binol units; poly binol; binol alt ... See more keywords
Chiral BINOL-based borate counterions: from cautionary tale on anion stability to enantioselective Cu-catalyzed cyclopropanation.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d2cc05924j
Abstract: The chiral weakly coordinating (3,3'-biphenyl-BINOL)BF2 anion can be generated by the reaction of the BINOL derivative with Cu(NCMe)4BF4. Structural analysis suggest the anion is weakly coordinating to Cu+. However, its use in cyclopropanation reactions leads… read more here.
Keywords: based borate; binol; cyclopropanation; binol based ... See more keywords