Organocatalytic Diastereo- and Enantioselective Annulation Reactions—Construction of Optically Active 1,2-Dihydroisoquinoline and 1,2-Dihydrophthalazine Derivatives
BOGER, D. L.;BROTHERTON, C. E.;KELLEY, M. D., TETRAHEDRON, 1981, 37, N 23, 3977-3980
作者:BOGER, D. L.、BROTHERTON, C. E.、KELLEY, M. D.
DOI:——
日期:——
A simplified isoquinoline synthesis
作者:Dale L. Boger、Christine E. Brotherton、Marshall D. Kelley
DOI:10.1016/s0040-4020(01)93272-7
日期:——
A simple variation of the Pomeranz-Fritsch cyclization provides a short, efficient route to isoquinolines. Treatment of benzylic halides or mesylates 1 with the sodium anion of N-tosyl aminoacetaldehyde dimethyl acetal (2) followed by acid-catalyzed cyclization provides an effective, two-step preparation of isoquinolines 4.