title: The acid-promoted reactions of phenyliodonium ylides with substituted anilines and their applications to the synthesis of indoles.
abstract: The N-substituted anilines 1 react readily with phenyliodonium ylides 2 derived from 1,3-dicarbonyl compounds in the presence of a catalytic amount of BF(3).Et(2)O, forming the C-N coupling products 3, which are precursors for the synthesis of indoles. On the basis of this result, the direct synthesis of indoles from 1 and 2 under thermal conditions and photochemical conditions was explored. The transformations could be achieved in a one-pot way under thermal conditions or in a tandem manner under photochemical conditions.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, P. R. China.
authors.forename: Xianpei
authors.initials: X
authors.lastname: Wang
authors.forename: Bing
authors.initials: B
authors.lastname: Han
authors.forename: Junyan
authors.initials: J
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Yu