One-pot three-component coupling reaction: solvent-free synthesis of novel 3-substituted indoles catalyzed by PMA–SiO2
作者:P. Srihari、Vinay K. Singh、Dinesh C. Bhunia、J.S. Yadav
DOI:10.1016/j.tetlet.2009.02.176
日期:2009.7
Solvent-free PMA–SiO2-catalyzed synthesis of 3-substituted indole derivatives by a one-potthree-componentcouplingreaction between aldehyde, N-methyl aniline and indole is described.
Gonzalez, Carlos R.; Greenhouse, Robert, Heterocycles, 1985, vol. 23, # 5, p. 1127 - 1130
作者:Gonzalez, Carlos R.、Greenhouse, Robert
DOI:——
日期:——
GONZALEZ, R. C.;GREENHOUSE, R., HETEROCYCLES, 1985, 23, N 5, 1127-1130
作者:GONZALEZ, R. C.、GREENHOUSE, R.
DOI:——
日期:——
Methanal Extrusion in ipso-Substitution Reactions of Hydroxymethylindoles
作者:Jeremy C. Dobrowolski、Kittiya Somphol、Mardi Santoso、Hung Duong、Christopher R. Gardner、Naresh Kumar、David StC. Black
DOI:10.1071/ch17257
日期:——
A range of 3-hydroxymethylindoles undergo acid-catalysed reactions involving ipso-electrophilic substitution with the extrusion of methanal and the formation of diindolylmethane moieties. Both inter- and intramolecular processes lead to macrocyclic compounds 10 and 14.
Rapid access to 3-acyl indoles using ethyl acetate/triflic acid couple as the acylium donor and Cu(OAc)<sub>2</sub> catalysed aerial oxidation of indole benzoins
作者:Ranadeep Talukdar
DOI:10.1039/d0ob01977a
日期:——
Esters are potential acyl donors but are relatively unexplored for that purpose. A facile installation of acyl groups at the C-3 position of indoles under triflic acid catalysed conditions with easily available and cheap esters as new acylating agents is described herein. Furthermore, heterocycles like N-protected pyrrole, furan and thiophene were also suitable substrates for similar C-2 acylation