Chapter 2 - Synthesis and transformation of allyl- and allenyl-metal species by pincer complex catalysis

Abstract

This chapter demonstrates that palladium pincer complexes can be employed as effective catalysts for the synthesis and transformation of allyl boronates, allyl stannanes, allenyl stannanes, allenyl silanes, and propargyl selenids. Chiral pincer complexes are promising catalysts for asymmetric allylation of sulfonimines. The catalysts presented in the chapter are highly moisturized and air-stable. Therefore, relatively low catalyst loadings can be employed, and in many cases, pincer-complex catalysts can be recovered unchanged after catalytic processes. Pincer-complex catalysts can be efficiently employed in one-pot reactions proceeding via allyl- and allenyl-metal intermediates because of their high stability and selectivity. The chapter states that as the pincer complexes are highly durable species under catalytic conditions, easily recyclable robust catalyst systems can be obtained by their immobilization.