Insertion Reaction of 2-Halo-N-allylanilines with K2S Involving Trisulfur Radical Anion: Synthesis of Benzothiazole Derivatives under Transition-Metal-Free Conditions
benzothiazole derivatives through the reaction of 2-halo-N-allylanilines with K2S in DMF is developed. The trisulfur radical anion S3·–, which is generated in situ from K2S in DMF, initiates the reaction without transition-metal catalysis or other additives. In addition, two C–S bonds are formed and heteroaromatization of benzothiazole is triggered by radical cyclization and H-shift.
Conversion of 2-halo-N-allylanilines to indoles via palladium(0) oxidative addition-insertion reactions
作者:Roy Odle、Burke Blevins、Matt Ratcliff、Louis S. Hegedus
DOI:10.1021/jo01301a032
日期:1980.6
ODLE R.; BLEVINS B.; RATCLIFF M.; HEGEDUS L. S., J. ORG. CHEM., 1980, 45, NO 13, 2709-2710
作者:ODLE R.、 BLEVINS B.、 RATCLIFF M.、 HEGEDUS L. S.
DOI:——
日期:——
Wolf, Justus Liebigs Annalen der Chemie, 1955, vol. 592, p. 222,240
作者:Wolf
DOI:——
日期:——
One-pot N-alkylation/Heck approach to substituted indoles
作者:Melissa L. Weinrich、Hilary P. Beck
DOI:10.1016/j.tetlet.2009.09.144
日期:2009.12
Here, we report the palladium-catalyzed one-pot N-alkylation/Heck cyclization of anilines to substituted indoles employing Pd(OAc)(2)/XPhos. The scope and limitations of this methodology will be described. (C) 2009 Elsevier Ltd. All rights reserved.