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Sensitive spectrophotometric method for the determination of propoxur using 4-aminoantipyrine

B Venkateswarlu1, K Seshaiah

  • 1Department of Chemistry, Sri Venkateswara University, Tirupati-517502, India.

Talanta
|January 1, 1995
PubMed

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Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).