144646-98-0Relevant articles and documents
Palladium-catalyzed coupling of 3-indolyl triflate. Syntheses of 3-vinyl and 3-alkynylindoles
Gribble,Conway
, p. 2129 - 2141 (2007/10/02)
Palladium-catalyzed coupling of 1-(phenylsulfonyl)indol-3-yl trifluoromethanesulfonate (triflate) (1) with terminal alkenes and alkynes gives 3-vinyl (2) and 3-alkynylindoles in 45-93% yields. An attempt to generate 2,3-indolyne 22 from 2-trimethylsilyl-3-indolyl triflate 20 gives indigo (23).