Functionalized indoles are synthezised under mild conditions in a tartaric acid-dimethylurea melt. The melt serves as the solvent and as the catalyst. Under these reaction conditions, sensitive functional groups such as N-Boc, N-Cbz, or azides are stable, and indolenines are obtained regioselectively in excellent yields. The practical use of the method is demonstrated in the synthesis of the hormone melatonin.
SIMOV, D.;METSOV, CT., IZV. XIM., 21,(1988) N 3, S. 353-360
作者:SIMOV, D.、METSOV, CT.
DOI:——
日期:——
Fischer Indole Synthesis in Low Melting Mixtures
作者:Sangram Gore、Sundarababu Baskaran、Burkhard König
DOI:10.1021/ol302034r
日期:2012.9.7
Functionalized indoles are synthezised under mild conditions in a tartaric acid-dimethylurea melt. The melt serves as the solvent and as the catalyst. Under these reaction conditions, sensitive functional groups such as N-Boc, N-Cbz, or azides are stable, and indolenines are obtained regioselectively in excellent yields. The practical use of the method is demonstrated in the synthesis of the hormone melatonin.
KOST A. N.; CHERNYSHOVA N. B.; YUDIN L. G.; TERENIN V. I., XIMIYA GETEROTSIKL. SOEDIN. <KGSS-AQ>, 1975, HO 1, 1506-1511
作者:KOST A. N.、 CHERNYSHOVA N. B.、 YUDIN L. G.、 TERENIN V. I.