Chen, Ming; Hartwig, John F. published the article 《Iridium-catalyzed enantioselective allylic substitution of unstabilized enolates derived from α,β-unsaturated ketones》. Keywords: allylic carbonate silyl enolate enantioselective allylic substitution iridium catalyst; allylated enone preparation enantioselective; asymmetric allylic substitution; asymmetric catalysis; unstabilized enolates; α,β-unsaturated ketones.They researched the compound: (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine( cas:415918-91-1 ).Recommanded Product: 415918-91-1. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:415918-91-1) here.
Ir-catalyzed, enantioselective allylic substitution reactions of unstabilized silyl enolates derived from α,β-unsaturated ketones were reported. Asym. allylic substitution of a variety of allylic carbonates with silyl enolates gave allylated products in 62-94 % yield with 90-98 % ee and >20:1 branched-to-linear selectivity. The synthetic utility of this method was illustrated by the short synthesis of an anticancer agent, TEI-9826.
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Reference:
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Ester – an overview | ScienceDirect Topics