The amidebasegenerated in situ from tetramethylammonium fluoride and N(TMS)3 catalyzes the synthesis of 1,3-diene from an allylbenzene and carbonyl compound. The system is applicable to the transformations of a variety of allylbenzenes with functional groups (halogen, methyl, phenyl, methoxy, dimethylamino, ester, and amide moieties). Acyclic and cyclic diaryl ketones, pivalophenone, pivalaldehyde
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.
Regioselective Reaction of 2-Indolylcyanocuprates with Electrophiles
作者:Minoru Ishikura、Reina Uemura、Koji Yamada、Reiko Yanada
DOI:10.3987/com-06-10865
日期:——
The reaction of 2-indolylcyanocuprate with electrophiles was found to give rise to 2- and 3-substituted indoles in regioselective manner.
Ishikura, Minoru; Kamada, Machiko; Oda, Izumi, Journal of Heterocyclic Chemistry, 1987, vol. 24, p. 377 - 386