Bg. Szczepankiewicz et Ch. Heathcock, A NOVEL METHOD FOR SUPPRESSION OF THE ABNORMAL FISCHER INDOLE SYNTHESIS, Tetrahedron, 53(26), 1997, pp. 8853-8870
A method is described for the use of the Fischer indole synthesis to p
repare 7-hydroxyindoles in good yield. The method involves the constru
ction of a 4-aminobenzoxazine and removal of the N-O tether after the
indole has been formed. (C) 1997 Elsevier Science Ltd.