NDLI: Catalytic asymmetric synthesis using chirality-switchable helical polymer as a chiral ligand

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Catalytic asymmetric synthesis using chirality-switchable helical polymer as a chiral ligand

Content Provider	Scilit
Author	Suginome, Michinori Yamamoto, Takeshi Nagata, Yuuya Yamada, Tetsuya Akai, Yuto
Copyright Year	2012
Description	Single-handed PQXphos, i.e., helical poly(quinoxaline-2,3-diyl)s bearing diarylphosphino pendant groups, served as remarkable chiral ligands in palladium-catalyzed asymmetric hydrosilylation of styrenes and asymmetric biaryl synthesis by Suzuki–Miyaura coupling, affording up to 98 % enantiomeric excess (e.e.) in both reactions. A palladium complex of high-molecular-weight variant (1000mer) of PQXphos could be reused eight times by virtue of the formation of an insoluble polymer complex. PQXphos underwent solvent-dependent inversion of the helical sense, enabling production of either of two enantiomeric products using a single PQXphos.
Related Links	https://core.ac.uk/download/pdf/39317978.pdf
ISSN	00334545
e-ISSN	13653075
DOI	10.1351/pac-con-11-08-23
Journal	Pure and Applied Chemistry
Issue Number	8
Volume Number	84
Language	English
Publisher	Walter de Gruyter GmbH
Publisher Date	2012-02-03
Access Restriction	Open
Subject Keyword	Journal: Pure and Applied Chemistry Pure and Applied Chemistry Organic Chemistry Macromolecular Chemistry Cross Coupling Reactions Asymmetric Catalysis Organometallic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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