Catalytic Asymmetric Formation of δ-Lactones by [4 + 2] Cycloaddition of Zwitterionic Dienolates Generated from α,β-Unsaturated Acid Chlorides.
2007 ◽
Vol 46
(28)
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pp. 5325-5328
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1990 ◽
Vol 55
(2)
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pp. 575-580
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1969 ◽
Vol 0
(4)
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pp. 592-595
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