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Enantioselective Dihydroxylation of Alkenes Catalyzed by 1,4‐Bis(9‐ O ‐dihydroquinidinyl)phthalazine‐Modified Binaphthyl–Osmium Nanoparticles
Author(s) -
Zhu Jie,
Sun XiaoTao,
Wang XiaoDong,
Wu Lei
Publication year - 2018
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201701368
Subject(s) - dihydroxylation , osmium , enantioselective synthesis , phthalazine , catalysis , chemistry , nanoparticle , reactivity (psychology) , organic chemistry , covalent bond , materials science , nanotechnology , ruthenium , medicine , alternative medicine , pathology
Abstract A series of unprecedented binaphthyl–osmium nanoparticles (OsNPs) with chiral modifiers were applied in the heterogeneous asymmetric dihydroxylation of alkenes. A remarkable size effect of the OsNPs, depending on the density of the covalent organic shells, on the reactivity and enantioselectivity of the dihydroxylation reaction was revealed. Successful recycling of the OsNPs was also demonstrated and high reaction efficiency and enantioselectivity were maintained.