A palladium--phosphinous acid-catalyzed Sonogashira cross-coupling reaction that proceeds in water under air atmosphere in the absence of organic co-solvents has been developed. Disubstituted alkynes have been prepared in up to 91% yield by POPd-catalyzed coupling of various aryl halides including chlorides in the presence of tetrabutylammonium bromide and pyrrolidine or NaOH.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/b407773c | DOI Listing |
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!