91107-13-0Relevant articles and documents
Synthesis of biindolyls by the reaction of indoles with indolin-2-ones and phosphoryl chloride or trifluoromethanesulfonic anhydride
Black, David StC.,Ivory, Andrew J.,Kumar, Naresh
, p. 4697 - 4708 (2007/10/03)
Examples of 2,2'-,2,3'- and 2,7'-biindolyls have been prepared by the reaction of indoles with indolin-2-ones and phosphoryl chloride or trifluoromethanesulfonic anhydride. In certain conditions terindolyls can also be formed and those described contained combinations of the above linkages.
A General Strategy for the Synthesis of 2,2'-, 2,3'-, and 2,7'-Bi-indolyls
Black, David St. C.,Kumar, Naresh
, p. 441 - 442 (2007/10/02)
Various substituted indoles undergo electrophilic substitution with indolin-2-one or 4,6-dimethoxyindolin-2-one and phosphoryl chloride to afford 2,2'-, 2,3'-, or 2,7'-bi-indolyls, depending on the initial substitution pattern.