Mass spectrum and thermal behavior in solid state of N,N-di(1-hydroxyalkyl)-2-imidazolidinone.

スポンサーリンク

概要

• 論文の詳細を見る

• 1,3-Bis(1-hydroxyalkyl)-2-imidazolidinones (<B>1</B>) were prepared by the reaction of imidazolidinone with propyl-, butyl-, isobutylaldehyde. They were unstable and moisture-sensitive substances, except for 1,3-bis(1-hydroxybutyl)-2-imidazolidinone (<B>1c</B>). In the decomposition by the electron impact of <B>1</B> and the dimer of <B>1c</B>, the molecular ion peak of <B>1</B> was not detected. The fragmentation of the imidazolidinone ring was considered to take place after a successive cleavage of the two side chains of <B>1</B>. The pyrolysis reaction of <B>1</B> was found to be a thermal decomposition via a molten state after a condensation reaction. The order of the pyrolysis was calculated on the basis of DSC curves. The condensation stage for <B>1c</B> apparently obeyed 1/2-order kinetics. From the dependence of the velocity on the temperature in DTA and the thermogravimetric analysis, the activation energy of decomposition was calculated; the value for the former was 67 and the latter 73 kJ mol<SUP>−1</SUP>. The mechanism of pyrolysis was supported by the results of the IR spectrum and chemical analysis.

• 公益社団法人 日本化学会の論文

著者

• Yoshimura Toshiaki

  Faculty of Engineering, Toyama University

• Shimasaki Choichiro

  Faculty of Engineering, Toyama University

• Tsukurimichi Eiichi

  Faculty of Engineering, Toyama University

• Nakajima Kyoko

  Faculty of Engineering, Toyama University

• Sugimori Yuka

  Faculty of Engineering, Toyama University

関連論文

• Synthesis of Peptidyl Phosphonate Diphenyl Ester Type Inhibitors for Serine Proteases from Peptide Amides
• Thermal behavior and characterization of poly(1,3-phenylenebis(methylene)adipamide).
• Mass spectrum and thermal behavior in solid state of N,N-di(1-hydroxyalkyl)-2-imidazolidinone.
• Thermal condensation in solid state of N-hydroxyalkyl-2-imidazolidinone.
• Studies on decomposition and formation of triazine series compounds. Part XIII. Thermal behavior and characterization of some 2-oxazolidinone derivatives.

スポンサーリンク