Palladium-catalysed coupling of aryl and vinyl triflates or halides with 2-ethynylaniline: An efficient route to functionalized 2-substituted indoles
作者:A. Arcadi、S. Cacchi、F. Marinelli
DOI:10.1016/s0040-4039(01)80456-1
日期:1989.1
vinyl triflates or halides with the easily available 2-ethynylaniline, followed by a palladium(II)-catalysed cyclization step, provides an efficient and very versatile procedure for the synthesis of functionalyzed 2-substitutedindoles.
Indol-2-yltributylstannane: A Versatile Reagent for 2-Substituted Indoles
作者:Sharada S. Labadie、Edmond Teng
DOI:10.1021/jo00094a042
日期:1994.7
A general method for 2-substituted indoles via the palladium-catalyzed coupling of indol-2-ylstannanes is described. (N-Methylindol-2-yl)tributylstannane (1) reacts with a variety of electrophiles under very mild conditions: [N-tert-Butoxycarbonyl)indol-2-yl]tributylstannane (3) is much less reactive in the coupling reactions and reacts only with certain activated electrophiles. [N-[[(Trimethylsilyl)ethoxy]methylindol-2-yl]tributylstannane (4) behaves similarly to 1 and the removal of the [(trimethylsilyl)ethoxy]methyl group can be achieved with tetra-n-butylammonium fluoride in DMF in the presence of ethylenediamine.
ARCADI, A.;CACCHI, S.;MARINELLI, F., TETRAHEDRON LETT., 30,(1989) N9, C. 2581-2584
作者:ARCADI, A.、CACCHI, S.、MARINELLI, F.
DOI:——
日期:——
Labadie Sharada S., Teng Edmond, J. Org. Chem, 59 (1994) N 15, S 4250-4254