29. Catalytic asymmetric cycloaddition reactions of dienes and aldehydes.      Jacobsen, Eric N.; Schaus, Scott E.; Dossetter, Alexander G.; Jamison, Timothy F.  (Harvard University, USA).    U.S.  (2001), 39 pp., US 6,130,340. 

28. Asymmetric cycloaddition reactions using transition metal chiral Schiff base complexes.      Jacobsen, Eric N.; Schaus, Scott E.; Dossetter, Alexander G.; Jamison, Timothy F.  WO 2000050365A1