SYNTHESIS AND APPLICATION OF CHIRAL SUBSTITUTED POLYVINYLPYRROLIDINONES
申请人:Kansas State University Research Foundation
公开号:US20200306737A1
公开(公告)日:2020-10-01
Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.
(+)- and (-)-5,5-Dimethyl-4-hydroxy-2-cyclopentenone 1 were efficiently synthesized by the dissymmetrization of meso diol 2 with lipase-catalyzed acetylation as a key step. The synthesis of (+)-5,5-dimethyl-4-hydroxy-2-cyclopentenone was also carried out by the chemical conversion of (-)-pantolactone 6.
Synthesis and application of chiral substituted polyvinylpyrrolidinones
申请人:Kansas State University Research Foundation
公开号:US10906033B2
公开(公告)日:2021-02-02
Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.
CATALYTIC ASYMMETRIC ACYLATION OF ALCOHOLS USING A CHIRAL 1,2-DIAMINE DERIVED FROM (S)-PROLINE: (1S,2S)-trans-1-BENZOYLOXY-2-BROMOCYCLOHEXANE
作者:Terakado, Dai、Oriyama, Takeshi、Zhang, Jing、Li, Fangzheng、Miller, Marvin J.
DOI:10.15227/orgsyn.083.0070
日期:——
Catalytic Asymmetrization of cis-2-Cyclopentene-1,4-diol. Highly Efficient and Practical Synthesis of (R)-4-Benzoyloxy-2-cyclopenten-1-one
作者:Takeshi Oriyama、Takeshi Hosoya、Tomohumi Sano
DOI:10.3987/com-99-s133
日期:——
Highly efficient, direct, and practical synthesis of (R)-4-benzoyloxy-2-cyclopenten-1-one, a chiral building block for various prostaglandins, with excellent ee was performed by the catalytic asymmetric acylation of cis-2-cyclopentene-1,4-diol, followed by oxidation with PDC.