ASYMMETRIC OXYSELENENYLATION OF OLEFINS USING OPTICALLY-ACTIVE SELENOBINAPHTHYLS AND D-MENTHOL AS A NUCLEOPHILE
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FUJITA, K
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UNIV TOKYO, COLL ARTS & SCI, DEPT CHEM, KOMABA, MEGURO KU, TOKYO 153, JAPANUNIV TOKYO, COLL ARTS & SCI, DEPT CHEM, KOMABA, MEGURO KU, TOKYO 153, JAPAN
FUJITA, K
[1
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IWAOKA, M
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UNIV TOKYO, COLL ARTS & SCI, DEPT CHEM, KOMABA, MEGURO KU, TOKYO 153, JAPANUNIV TOKYO, COLL ARTS & SCI, DEPT CHEM, KOMABA, MEGURO KU, TOKYO 153, JAPAN
IWAOKA, M
[1
]
TOMODA, S
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UNIV TOKYO, COLL ARTS & SCI, DEPT CHEM, KOMABA, MEGURO KU, TOKYO 153, JAPANUNIV TOKYO, COLL ARTS & SCI, DEPT CHEM, KOMABA, MEGURO KU, TOKYO 153, JAPAN
TOMODA, S
[1
]
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[1] UNIV TOKYO, COLL ARTS & SCI, DEPT CHEM, KOMABA, MEGURO KU, TOKYO 153, JAPAN
In order to improve the diastereomeric excess (d.e.) in asymmetric oxyselenenylation of symmetrical cis-olefins using bis [(R)-2'-acetylamino-1,1'-binaphthalene)-2-yl] diselenide, the use of d- and 1-menthol was examined as nucleophiles. The d.e. was further enhanced for symmetrical cis-olefins as well as trans-beta-methylstyrene by using d-menthol due to double stereodifferentiation between the (R)-binaphthyl and d-menthol.