91107-13-0Relevant academic research and scientific papers
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.
Reactivity of 3-substituted indolin-2-ones in Vilsmeier-type reactions of 4,6-dimethoxyindoles
Black, David St.C.,Ivory, Andrew J.,Kumar, Naresh
, p. 7003 - 7012 (2007/10/03)
4,6-Dimethoxy-2,3-diphenylindole 1 undergoes reaction with the 3-substituted indolin-2-ones 7,8,11-14 and either phosphoryl chloride or triflic anhydride to give the 2,7'-biindolyl 16, the 7,7'; 2,7'-terindolyls 19, 20 and the 7,7'-biindolyl 23.
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.
