Solid-Phase Approach to Tetrahydroquinolones Using a Sulfur Linker Cleaved by SmI<sub>2</sub>
作者:Kristy L. Turner、Thomas M. Baker、Saidul Islam、David J. Procter、Mark Stefaniak
DOI:10.1021/ol052730n
日期:2006.1.1
A sulfur alpha-heteroatom-substituted carbonyl (HASC) linker has been utilized in a solid-phase approach to tetrahydroquinolones. The route illustrates the compatibility of the linker system with palladium-catalyzed transformations and its utility for library synthesis. The linker is cleaved by electron transfer from samarium(II) iodide.
Solid Phase Approaches to <i>N</i>-Heterocycles Using a Sulfur Linker Cleaved by SmI<sub>2</sub>
作者:Laura A. McAllister、Kristy L. Turner、Stephen Brand、Mark Stefaniak、David J. Procter
DOI:10.1021/jo060940n
日期:2006.8.1
A sulfur HASC (α-hetero-atom substituted carbonyl) linker has been utilized in solid-phase approaches to oxindoles and tetrahydroquinolones. The route to oxindoles employs the first Pummerer cyclizations on solidphase, whereas the route to tetrahydroquinolones involves a microwave-assisted Heck reaction followed by a Michael cyclization. In both cases, the linker is cleaved in a traceless fashion