Tandem pericyclic rearrangements

Three enantiomerically pure starting materials ensure remote stereochemical control Tandem iminium ion formation and vinyl silane cyclisation Part IV - Tandem Pericyclic Reactions Electrocyclic Formation of a Diene for Diels-Alder Reaction Tandem Ene Reactions Tandem [3,3]-Sigmatropic Rearrangements Tandem Aza-Diels-Alder and Aza-Ene Reactions... 

It has been established that the course of the sequential pericyclic reaction of cyclopentadienones with acyclic conjugated alkadienes depends on the reaction temperature, thermal treatment at low temperatures affording 3a,4,7,7a-tetrahydroinden-l-one derivatives by way of a Cope rearrangement (see Scheme 38). Roman et al have developed an efficient stereoselective synthesis of enantiomerically pure i-nitrotricyclo[5.2.2.0 ]undeca-3,8-dienes via a tandem consecutive asymmetric Diels-Alder-Cope rearrangement (see Scheme 39). Adducts... 

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