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Allowed and Forbidden Cycloadditions

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Michael Evans

00:00 Introduction
00:54 Frontier MO Analysis of the DielsAlder Reaction
03:11 Analysis of Polarized Reactants
04:54 Thermal (2 + 2) Cycloaddition is Forbidden
06:10 Photochemical (2 + 2) Cycloaddition is Allowed
07:50 General Conclusions

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