scholarly journals Methanal Extrusion in ipso-Substitution Reactions of Hydroxymethylindoles

2017 ◽  
Vol 70 (11) ◽  
pp. 1188 ◽  
Author(s):  
Jeremy C. Dobrowolski ◽  
Kittiya Somphol ◽  
Mardi Santoso ◽  
Hung Duong ◽  
Christopher R. Gardner ◽  
...  

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.


Author(s):  
Neelottama Kushwaha ◽  
C S Sharma

: Triazine is the six-membered heterocyclic ring containing three nitrogen which replaces carbon-hydrogen unit in the benzene ring. Based on nitrogen position present in the ring system, it is categorized in three isomeric forms i.e.1, 2, 3-triazine (vicinal triazine), 1, 2, 4-triazine (asymmetrical triazine or isotriazine) and 1, 3, 5-triazine (symmetrical or s-triazine or cyanidine). Triazines have weakly basic property. Its isomers have much weaker resonance energy than benzene structure, so nucleophilic substitution reactions are more preferred than electrophilic substitution reactions. Triazine isomers and their derivatives are known to play important roles possessing various activities in medicinal and agricultural fields such as anti-cancer, antiviral, fungicidal, insecticidal, bactericidal, herbicidal, antimalarial and antimicrobial agents.



1978 ◽  
Vol 9 (24) ◽  
Author(s):  
L. TESTAFERRI ◽  
M. TIECCO ◽  
M. TINGOLI ◽  
M. FIORENTINO ◽  
L. TROISI


2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Muhammad Irfan ◽  
Rabia Rehman ◽  
Mohd. R. Razali ◽  
Muhammad Adnan Iqbal ◽  
◽  
...  

AbstractIn wake of emerging applications of organotellurium compounds in biological and material science avenues, the current review describes their key synthetic methodologies while focusing the synthesis of organotellurium compounds through five ligand-to-metal linkages including carbon; carbon-oxygen; carbon-nitrogen; carbon-metal; carbon-sulfur to tellurium. In all of these linkages whether tellurium links with ligands through a complicated or simple pathways, it is often governed through electrophilic substitution reactions. The present study encompasses these major synthetic routes so as to acquire comprehensive understanding of synthetic organotellurium compounds.



1985 ◽  
Vol 21 (7) ◽  
pp. 782-785 ◽  
Author(s):  
E. S. Besidskii ◽  
G. A. Golubeva ◽  
L. A. Sviridova




ChemInform ◽  
1990 ◽  
Vol 21 (21) ◽  
Author(s):  
DZH. ZEGKHUGKH ◽  
SH. A. SAMSONIYA ◽  
D. O. KADZHRISHVILI ◽  
L. M. MAMALADZE


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