• Title/Summary/Keyword: Acyl substitution

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Selective Acylation and Aminomethylation of Benzoylated Calix[4]arene

  • 남계준;김종민;국승근;이상좌
    • Bulletin of the Korean Chemical Society
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    • v.17 no.6
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    • pp.499-502
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    • 1996

  • Two different acyl substituents were introduced at the lower rim of calix[4]arene by the two step reactions. Calix[4]arenes (1) reacted with 3,5-dinitrobenzoyl chloride to yield monosubstituted calix[4]arene (2). Second substitution was achieved by the reaction of 2 with various acyl chlorides. Aminomethylation of monobenzoylated calix[4]arene was conducted successfully in the presence of secondary amine and formaldehyde.

  • https://doi.org/10.5012/bkcs.1996.17.6.499 인용 PDF

The Effect of Pressure on the Rate of Solvolysis (Ⅲ) Kinetics on the Nucleophilic Substitution Reactions of Acyl- and Alkyl groups in Binary Solvents (가용매분해반응속도에 대한 압력의 영향(Ⅲ) 이성분용매내 Acyl류와 Alkyl류의 친핵성 치환반응의 속도론적 연구)

  • Kyong, Jin Burm;Park, Byoung Chun;Kwun, Oh Cheun
    • Journal of the Korean Chemical Society
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    • v.41 no.9
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    • pp.443-448
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    • 1997

  • Kinetics for the solvolyses of acyl chlorides and alkyl chlorides in hydroxylic solvent mixtures have been measured by conductometric method at various temperatures and pressures. The activation parameters (${\Delta}V^{\neq},\; {\Delta}H^{\neq},\; {\Delta}S^{\neq}$) were estimated from the rate constants. The reactivities of these reactions were also estimated from the correlation of the activation volumes with the activation entropies.

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