Cascade Processes Initiated by Conjugate Addition via Phase-transfer Catalysis

5 Cascade Processes Initiated by Conjugate Addition via Phase-transfer Catalysis 

Several very interesting cascade processes have also been developed under phase-transfer catalysis which are initiated by a conjugate addition reaction, although the number of reports is remarkably more limited compared to other organocatalytic cascades proceeding via other different mechanisms of activation. Representative examples will be presented in the following pages. 

The most widely studied type of cascade initiated by a conjugate addition proceeding under phase-transfer catalysis conditions involves the use of either a 

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