A CATALYTIC ENANTIOSELECTIVE REACTION USING A C-2-SYMMETRICAL DISULFONAMIDE AS A CHIRAL LIGAND - SIMMONS-SMITH CYCLOPROPANATION OF ALLYLIC ALCOHOLS BY THE ET(2)ZN-CH2I2-DISULFONAMIDE SYSTEM
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TAKAHASHI, H
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机构:SAGAMI CHEM RES CTR,SAGAMIHARA,KANAGAWA 229,JAPAN
TAKAHASHI, H
YOSHIOKA, M
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机构:SAGAMI CHEM RES CTR,SAGAMIHARA,KANAGAWA 229,JAPAN
YOSHIOKA, M
SHIBASAKI, M
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机构:SAGAMI CHEM RES CTR,SAGAMIHARA,KANAGAWA 229,JAPAN
SHIBASAKI, M
OHNO, M
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机构:SAGAMI CHEM RES CTR,SAGAMIHARA,KANAGAWA 229,JAPAN
OHNO, M
IMAI, N
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IMAI, N
KOBAYASHI, S
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机构:SAGAMI CHEM RES CTR,SAGAMIHARA,KANAGAWA 229,JAPAN
KOBAYASHI, S
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[1] SAGAMI CHEM RES CTR,SAGAMIHARA,KANAGAWA 229,JAPAN
A catalytic and enantioselective Simmons-Smith cyclopropanation of an allylic alcohol was developed by the reaction of an allylic alcohol with Et(2)Zn and CH2I2 in the presence of a catalytic amount of chiral disulfonamide 4.