论文信息 - 1,3-Dipolar cycloaddition of nitrones with electron-rich alkenes catalyzed by Yb(Otf)^3

1,3-Dipolar cycloaddition of nitrones with electron-rich alkenes catalyzed by Yb(Otf)^3

1,3-Dipolar cycloaddition of nitrones with ethyl vinyl ether or 2,3-dihydrofuran proceeds smoothly in the presence of a catalytic amount (10 mol%) of ytterbium triflate to afford isoxazolidines and dicyclic isoxazolidine respectively with good yields and high stereoselectivity.

C. Qian | Ruifang Chen | Longcheng Wang

[1] C. Qian,et al. Addition of Silyl Ketene Acetals to Nitrones Catalyzed by Lanthanide Triflates , 2000 .

[2] C. Qian,et al. Lanthanide triflate catalyzed Biginelli reaction. one-pot synthesis of dihydropyrimidinones under solvent-free conditions. , 2000, The Journal of organic chemistry.

[3] 孙杰,et al. Lanthanide chloride catalyzed imino diels-Alder reaction. One-pot synthesis of pyrano[3,2-c]-and furo[3,2-c]quinolines , 1999 .

[4] K. Gothelf,et al. CATALYTIC ENANTIOSELECTIVE INVERSE-ELECTRON DEMAND 1,3-DIPOLAR CYCLOADDITION REACTIONS OF NITRONES WITH ALKENES , 1999 .

[5] 钱长涛,et al. One-pot synthesis of α-amino phosphonates from aldehydes using lanthanide triflate as a catalyst , 1998 .

[6] K. Gothelf,et al. Asymmetric 1,3-Dipolar Cycloaddition Reactions. , 1998, Chemical reviews.

[7] C. Qian,et al. Glyoxylate-Ene Reaction Catalyzed by Ln(OTf)3 , 1997 .

[8] H. W. Scheeren,et al. 1,3-Dipolar cycloaddition reactions of nitrones with alkyl vinyl ethers catalyzed by chiral oxazaborolidines , 1997 .

[9] C. Dicken,et al. Reactions at high pressures. [3+2] Dipolar cycloaddition of nitrones with vinyl ethers , 1982 .

[10] J. Tufariello. Alkaloids from nitrones , 1979 .