Ortho-TMS benzaldehyde, an effective bifunctional linchpin for Type II Anion Relay Chemistry (ARC), permits efficient multi-component union of a variety of nucleophiles and electrophiles, including the first example of a Pd-mediated ARC Type II process. To demonstrate the utility of the Type II ARC protocol, a “proof of concept” synthetic sequence was designed and implemented for construction of a focused library of “natural product-like” compounds.
Uniting Anion Relay Chemistry with Pd-Mediated Cross Coupling: Design, Synthesis and Evaluation of Bifunctional Aryl and Vinyl Silane Linchpins
作者:Amos B. Smith、Won-Suk Kim、Rongbiao Tong
DOI:10.1021/ol902784q
日期:2010.2.5
Union of type II AnionRelayChemistry (ARC) with Pd-induced Cross Coupling Reactions (CCR) has been achieved, in conjunction with the design, synthesis, and evaluation of a new class of bifunctionallinchpins, comprising a series of vinyl silanes bearing β- or γ-electrophilic sites. The synthetic tactic permits both alkylation and Pd-mediated CCR of the anions derived via 1,4-silyl C(sp2)→O Brook