1.3- Diphenylpropenyl ester

As mentioned before, acyclic substrates have been studied in detail, in particular, the reactions of 1,3-diphenylpropenyl ester (19, X=COR) or carbonate (19, X=OCC>2R), the gold standard for this class. Selected ligands for the allylic alkylation, amination, and etherification are shown in Fig. 1 and representative data are presented in Table 1. 

Fig. 1 Selected ligands in Pd-catalyzed reactions of 1,3-diphenylpropenyl esters or carbonates...

Although a vast amount of research has been devoted to the asymmetric 7i-allylic subshtuhon of acyclic esters (e.g. 1,3-diphenylpropenyl esters) with carbon and nitrogen nucleophiles, studies on the catalytic asymmehic subshtuhon of cyclic... 

Microencapsulated palladium (MC[Pd(PPh3)j) was found to catalyze the allylic alkylation of 1,3-diphenylpropenyl ester with good stereoselectivity (up to 83%) in the presence of an external chiral ligand 107 (Scheme 36) [122]. 

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