Trimethylaluminium mediated amide bond formation in a continuous flow microreactor as key to the synthesis of rimonabant and efaproxiral
作者:Tomas Gustafsson、Fritiof Pontén、Peter H. Seeberger
DOI:10.1039/b719603b
日期:——
A safe, functional-group-tolerant and high-throughput version of the trimethylaluminium mediated amide bond formation reaction has been developed in a microreactor system; rimonabant and efaproxiral were prepared to illustrate the utility of the method.
作者:M. L. Di Gioia、P. Costanzo、A. De Nino、L. Maiuolo、M. Nardi、F. Olivito、A. Procopio
DOI:10.1039/c7ra04425a
日期:——
A mild method for an efficient removal of the fluorenylmethoxycarbonyl (Fmoc) group in ionic liquid was developed. The combination of a weak base such as triethylamine and [Bmim][BF4] makes the entire system more efficient for the cleavage at room temperature of various amines and aminoacid methyl esters in short reaction times. The procedure works well even in the case of N-Fmoc aminoacids bearing