Acyl palladium species in synthesis: single-step synthesis of α,β-unsaturated ketones from acid chlorides
作者:Russell J. Cox、Andrew S. Evitt
DOI:10.1039/b616582f
日期:——
Conditions are reported for the facile, one-pot synthesis of alpha,beta-unsaturated ketones via the palladium-catalysed cross-coupling of acylchlorides with hydrozirconated acetylenes, and its use in the 2-step synthesis of D-5-O-benzyl deoxyxylulose.
作者:Gary H. Posner、Hardwin O'Dowd、Poonsakdi Ploypradith、Jared N. Cumming、Suji Xie、Theresa A. Shapiro
DOI:10.1021/jm980088f
日期:1998.6.1
Over 20 new, cyclic, peroxy ketals have been prepared via a two-step protocol starting with readily available aryl methyl ketones. Structure-activity correlations using in vitro antimalarial data as a guide for optimization of potency have led to the design and synthesis of seven new peroxides that have IC50 values of 31-85 nM (artemisinin IC50 = 8.4 nM). Some SAR generalizations are discussed.