11. Asymmetric Induction of the 1, 3-Dipolar Cycloaddition Reaction with Chiral Lewis Acid Catalysts 12. The process is driven by dipolar coupling, and is therefore related to internuclear distances. 13. Montr�alones participate in 1, 3-dipolar cycloaddition reactions with polyheterocycles related to polypyrroles. 14. It also belongs to the class of dipolar aprotic solvents such as dimethylformamide and dimethyl sulfoxide. 15. We thus observe no dipolar coupling. 16. In this compound the dipolar structure is calculated to contribute 23 % to the total structure. 17. The units are dipolar , which means that they produce sound both in front and behind equally. 18. 1, 3-dipolar cycloaddition with nitrile oxides is a widely used masked-aldol reaction. 19. Subsequent 1, 3-dipolar cycloaddition reaction occurs through a transient metal-complexed carbonyl ylide. 20. Facial Selectivity of the 1, 3-Dipolar Cycloaddition Reaction using a Metal Catalyst and Lewis Acid
