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Unequivocal structural assignment of the product of methylation of 4-nitro-5-styrylimidazole

✍ Scribed by Vijayvithal P. Vaidya; Ramachandra S. Hosmane; Upali Siriwardane; Hongming Zhang; Narayan S. Hosmane


Book ID
104884584
Publisher
Springer
Year
1993
Tongue
English
Weight
351 KB
Volume
4
Category
Article
ISSN
1040-0400

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Methylation of 4-nitro-3(5)-pyrazolecarb
✍ Andrzej Regiec; Henryk Mastalarz; Agnieszka Mastalarz; Andrzej Kochel πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 French βš– 230 KB

Reactions of 4-nitro-3(5)-pyrazolecarboxylic acid dipotassium salt with different methylating agents in various solvents have been investigated to improve the synthesis of isomeric 1-methyl-4-nitro-3-and -5-pyrazolecarboxylic acids.