Synthesis of Aryl Trimethylstannane via BF<sub>3</sub>·OEt<sub>2</sub>-Mediated Cross-Coupling of Hexaalkyl Distannane Reagent with Aryl Triazene at Room Temperature
BF3·OEt2-mediated cross-coupling of (SnMe3)2 with aryl triazene offers a new strategy for the synthesis of aryl stannane. A variety of synthetically useful aryl trimethylstannanes were produced in moderate to good yields with this metal-free approach. One-pot sequential Stille cross-coupling with different aryl bromides provides a short entry to both symmetrical and unsymmetrical biaryl compounds.
Tandem Coupling of 5-Bromo-3-iodo-1-tosylindole with Trimethylarylstannanes and Aryl Boronic Acids
作者:Youhua Yang、Arnold R. Martin
DOI:10.1080/00397919208020495
日期:1992.6
Palladium(0)-catalyzed coupling of 5-bromo-3-iodo-1-tosylindole with trimethylarylstannanes afforded 3-aryl-5-bromo-1-tosylindoles which were then coupled with aryl boronic acids to give 3,5-diarylated indoles in moderate to excellent yields.