01377nam a2200145   4500001000700000100004100007101000800048200007000056210004500126215001800171330098200189606001401171700002001185702002601205383026  a20050928d1970       y0pory50      ba  aeng  aThe conservation of orbital symmetryfR. B. Woodward, R. Hoffmann  a[Weinheim/Bergstr.]cVerlag Chemied1970  a178 p.d22 cm  a1. Introduction. 2. Orbitals and bonding. 3. Correlation Diagrams. 3.1. General comments on the construction of correlation diagrams. 3.2. Precautions in the construction of correlation diagrams. 4. The conservation of orbital symmetry. 5. Theory of electrocyclic reactions. 5.1. Electrocyclic reactions exemplified. 6. Theory of cycloadditions and cycloreversions. 6.1. Cycloadditions and cycloreversions exemplified. 6.2. [2+2] Cycloadditions in the photochemistry of the cyclohexadienones and cyclohexenones. 6.3. The [2+2+2] Cycloaddition reaction. 6.4. Prismane. 6.5. [2+2+2+2] Cycloadditions. 7. Theory of sigmatropic reactions. 7.1. Sigmatropic reactions exemplified. 7.2. Sequential sigmatropic shifts. 8. Group transfers and eliminations. 9. Secondary effects. 10. Divertissements! 10.1. Cheletropic reactions 10.2. Cycloaddition reactions of Ketenes. 11. Generalized selection rules for pericyclic reactions. 12. Violations. 13. Other theoretical work.14. Conclusion.  aQUÍMICA  aWOODWARDbR. B.  aHOFFMANNbR.4e outro