Cleavable alkene-containing linkers and supports useful for the solid phase synthesis of chemical compounds, and combinatorial libraries of compounds, are disclosed. Also disclosed are methods of making and using the linkers and supports.
Transition‐metal‐free synthesis of β‐alkoxy monohydroperoxides via aerobic photooxidation using an acridinium photocatalyst was developed. This method enables the synthesis of some novel hydroperoxides. The peroxide source is molecular oxygen, which is cost‐effective and atomically efficient. Magnesium oxide plays an important role as a base in the catalytic system.
Iodine(V) Reagents in Organic Synthesis. Part 3. New Routes to Heterocyclic Compounds via <i>o</i>-Iodoxybenzoic Acid-Mediated Cyclizations: Generality, Scope, and Mechanism
作者:K. C. Nicolaou、P. S. Baran、Y.-L. Zhong、S. Barluenga、K. W. Hunt、R. Kranich、J. A. Vega
DOI:10.1021/ja012126h
日期:2002.3.1
The discovery and development of the o-iodoxybenzoic acid (IBX) reaction with certain unsaturated N-aryl amides (anilides) to form heterocycles are described. The application of the method to the synthesis of delta-lactams, cyclic urethanes, hydroxy amines, and amino sugars among other important building blocks and intermediates is detailed. In addition to the generality and scope of this cyclization
C(alkenyl)–H Activation via Six-Membered Palladacycles: Catalytic 1,3-Diene Synthesis
作者:Mingyu Liu、Pusu Yang、Malkanthi K. Karunananda、Yanyan Wang、Peng Liu、Keary M. Engle
DOI:10.1021/jacs.8b02124
日期:2018.5.2
prepare highly substituted 1,3-dienes from two different alkenes is described using a directed, palladium(II)-mediated C(alkenyl)-H activation strategy. The transformation exhibits broad scope across three synthetically useful substrate classes masked with suitable bidentate auxiliaries (4-pentenoic acids, allylicalcohols, and bishomoallylic amines) and tolerates internal nonconjugated alkenes, which