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- W2950752308 startingPage "1859" @default.
- W2950752308 abstract "The stereochemical course of the tandem [4+2]/[3+2] nitroalkene cycloaddition with chiral enol ethers has been shown to exhibit remarkable sensitivity to the nature of the Lewis acid promoter. Cycloadditions using (+)-camphor-derived vinyl ether 3 or (-)-trans-2-phenylcycloheranol-derived vinyl ether 6 gave a predominance of the 1S hydroxy lactam 4 when promoted by Ti(O-i-Pr) 2 Cl 2 . The same vinyl ethers selectively produced the IR hydroxy lactam 4 when promoted by MAPh" @default.
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- W2950752308 date "1993-03-01" @default.
- W2950752308 modified "2023-10-18" @default.
- W2950752308 title "Tandem inter [4+2]/intra [3+2]nitroalkene cycloadditions. 5. Origin of the Lewis acid dependent reversal of stereoselectivity" @default.
- W2950752308 doi "https://doi.org/10.1021/jo00059a044" @default.
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