引用本文:
Wen PEI, Eiji WADA, Shuji KANEMASA. Asymmetric Diels-Alder Reaction of 1-(SR)-p-Tolylsulfinyl-3-penten-2-one with Cyclopentadiene Catalzed by a Chiral Titanium Reagent[J]. Chinese Chemical Letters,
1997, 8(11): 935-936.
Citation: Wen PEI, Eiji WADA, Shuji KANEMASA. Asymmetric Diels-Alder Reaction of 1-(SR)-p-Tolylsulfinyl-3-penten-2-one with Cyclopentadiene Catalzed by a Chiral Titanium Reagent[J]. Chinese Chemical Letters, 1997, 8(11): 935-936.
Citation: Wen PEI, Eiji WADA, Shuji KANEMASA. Asymmetric Diels-Alder Reaction of 1-(SR)-p-Tolylsulfinyl-3-penten-2-one with Cyclopentadiene Catalzed by a Chiral Titanium Reagent[J]. Chinese Chemical Letters, 1997, 8(11): 935-936.
Asymmetric Diels-Alder Reaction of 1-(SR)-p-Tolylsulfinyl-3-penten-2-one with Cyclopentadiene Catalzed by a Chiral Titanium Reagent
摘要:
Double asymmetric Diels-Alder reaction of 1-(SR)-p-Tolylsulfinyl-3-penten-2-one with cyclopentadiene using a chiral titanium reagent was performed.The diastereoselectivity dependent on the size of aryl substituent involved in the chiral ligands was discussed.Absolute configuration of the cycloadducts was confirmed.Dramatic reversal of selectivity is observed.
English
Asymmetric Diels-Alder Reaction of 1-(SR)-p-Tolylsulfinyl-3-penten-2-one with Cyclopentadiene Catalzed by a Chiral Titanium Reagent
Abstract:
Double asymmetric Diels-Alder reaction of 1-(SR)-p-Tolylsulfinyl-3-penten-2-one with cyclopentadiene using a chiral titanium reagent was performed.The diastereoselectivity dependent on the size of aryl substituent involved in the chiral ligands was discussed.Absolute configuration of the cycloadducts was confirmed.Dramatic reversal of selectivity is observed.
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