3,3'-Carbonylbis[5-phenyl-1,3,4-oxadiazole-2(3H)-thione]: A novel, reactive, and versatile condensing agent for amide, ester, thiol ester, urea, carbonate, polyamide, and polyurea syntheses.
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概要
- 論文の詳細を見る
A novel condensing agent, 3,3′-carbonylbis[5-phenyl-1,3,4-oxadiazole-2(3<I>H</I>)-thione] (<B>3</B>), was readily prepared by the reaction of 5-phenyl-1,3,4-oxadiazole-2(3<I>H</I>)-thione with trichloromethyl chloroformate in benzene. The reagent <B>3</B> was found to be very useful for the one-pot or direct preparation of amide, ester, thiol ester, urea, and carbonate under mild conditions. The one-pot or direct polycondensation of several dicarboxylic acids with aromatic diamines and of aromatic diamines using <B>3</B> proceeded smoothly at ambient temperature to produce high-molecular-weight polyamides and polyureas, respectively.
- 公益社団法人 日本化学会の論文
著者
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NAKAMURA Shigeo
Department of Applied Chemistry, Faculty of Engineering, Kanagawa University
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Saegusa Yasuo
Department of Applied Chemistry, Faculty of Engineering, Kanagawa University
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