ChemInform Abstract: N-Alkylation and Electrophilic Substitution Reactions of 2- Methylpyrazolo(1,5-a)pyridin-5-ol and Related Compounds.

ChemInform ◽  
2010 ◽  
Vol 25 (40) ◽  
pp. no-no
Author(s):  
R. F. C. BROWN ◽  
R. P. MCGEARY
Keyword(s):  
Electrophilic Substitution ◽  
Substitution Reactions ◽  
Electrophilic Substitution Reactions ◽  
Related Compounds

N-Alkylation and Electrophilic Substitution Reactions of 2-Methylpyrazolo[1,5-a]pyridin-5-ol and Related Compounds

1994 ◽  
Vol 47 (6) ◽  
pp. 1009 ◽  
Author(s):  
RFC Brown ◽  
RP Mcgeary
Keyword(s):  
Electrophilic Substitution ◽  
Mannich Base ◽  
Nitroso Compounds ◽  
Substitution Reactions ◽  
Electrophilic Substitution Reactions ◽  
Related Compounds

2-Methylpyrazolo[1,5-a]pyridin-5-ol (1), its acetate (2), and related compounds have been subjected to N- alkylation and electrophilic substitution reactions. Bromination , nitration, nitrosation , acylation and Mannich and related reactions show a preference for 3-substitution and 3,4-disubstitution. Nitration of (1) gives 4-substitution and 3,4-disubstitution. Reductions of nitro and nitroso compounds and some transformations of a Mannich base are described.

Organotellurium compounds: an overview of synthetic methodologies

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Muhammad Irfan ◽  
Rabia Rehman ◽  
Mohd. R. Razali ◽  
Muhammad Adnan Iqbal ◽  
◽  
...  
Keyword(s):  
Material Science ◽  
Electrophilic Substitution ◽  
Comprehensive Understanding ◽  
Substitution Reactions ◽  
Current Review ◽  
Synthetic Routes ◽  
Electrophilic Substitution Reactions ◽  
Synthetic Methodologies ◽  
Organotellurium Compounds

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.

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