Carbon dioxide as a reversible amine-protecting agent in selective Michael additions and acylations
作者:Annelies Peeters、Rob Ameloot、Dirk E. De Vos
DOI:10.1039/c3gc40568k
日期:——
solution of a sufficiently basic primary amine at room temperature and atmospheric pressure. This reaction is employed for the protection of the amine functionality in several reactions at room temperature where inter- or intramolecular selectivity is desired. The concept is demonstrated for the selective Michael additions to methyl acrylate of a normally less reactive sulfonamide in the presence of a strong