Silicon-based aromatic transferring linkers for traceless solid-phase synthesis of aryl-, polyaryl-, and heteroaryl-containing compounds
作者:Younghee Lee、Richard B Silverman
DOI:10.1016/s0040-4020(01)00457-4
日期:2001.6
A number of arylsilane-based linkers are prepared for traceless solid-phase synthesis. General methodologies for introduction of the silyl group and various functional groups to aromatic, polyaromatic, and heteroaromatic rings are developed. Also, broad utilities of the linkers are demonstrated by on-resin preparation of small organic molecules and subsequent cleavage of the products either by protiodesilylation
Hydroaminoalkylation/Buchwald‐Hartwig Amination Sequences for the Synthesis of Novel Thieno‐ or Benzothieno‐Annulated Tetrahydropyridines, Tetrahydroazasilines, and Tetrahydroazasilepines
作者:Michael Warsitz、Stefan H. Rohjans、Marc Schmidtmann、Sven Doye
DOI:10.1002/ejoc.202001523
日期:2021.2.5
Hydroaminoalkylation reactions of 2‐allyl‐, 2‐allyldimethylsilyl‐, or 2‐dimethyl(vinyl)silyl‐substituted 3‐bromothiophenes or 3‐bromobenzothiophenes with secondary amines deliver the branched or the linear addition products with high regioselectivity. A combination of this reaction with a subsequent intramolecular Buchwald‐Hartwig amination results in several one‐pot processes that give direct access