Tandem Inter /Intra Nitroalkene Cycloadditions. 5. Origin of the Lewis Acid Dependent Reversal of Stereoselektivity
The stereochemical course of the tandem / 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 (-)-t
Denmark, Scott E.,Schnute, Mark E.,Senanayake, C. B. W.
p. 1859 - 1874
(2007/10/02)
TANDEM /-CYCLOADDITIONS. 2. ASYMMETRIC INDUCTION WITH A CHIRAL VINYL ETHER
A tandem /-cycloaddition of nitroalkenes tethered to α,Sb-unsaturated ester dipolarophiles can be effectively triggered with a vinyl ether.Using the chiral vinyl ether 6 as the dienophile, nitroalkenes 1 and 2 undergo highly selective tandem cyc
Denmark, Scott E.,Senanayake, C. B. W.,Ho, Ginny-Dai
p. 4857 - 4876
(2007/10/02)
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