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Orbital Symmetry Analysis of and -Sigmatropic Rearrangements

5-suprafacial alkyl shift with retention of configuration is allowed 6e process, zero node, Huckel topology aromatic [Pg.111]

5-suprafacial alkyl shift with inversion of configuration is forbidden 6e process, one node, Mobius topology antiaromatic [Pg.111]

Chair- like TS, 6e process Huckel topology aromatic [Pg.111]

The TS is stabilized by hydrogen bonding and the reaction rate increases with increasing solvent polarity. Water is a favorable solvent in many cases. [Pg.111]



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And -sigmatropic rearrangement

And symmetry

Of sigmatropic

Orbital symmetry

Orbital symmetry analysis

Orbital symmetry rearrangements

Orbitals symmetry

Sigmatropic -rearrangements rearrangement

Sigmatropic rearrangements orbital symmetry

Symmetry and Orbitals

Symmetry of orbitals

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