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Efficiency of Lithium Cations in Hydrolysis Reactions of Esters in Aqueous Tetrahydrofuran
Chemical & Pharmaceutical Bulletin ( IF 1.5 ) Pub Date : 2021-06-01 , DOI: 10.1248/cpb.c21-00013
Kazuhiko Hayashi 1 , Yoshimi Ichimaru 1 , Kirara Sugiura 1 , Azusa Maeda 1 , Yumi Harada 1 , Yuki Kojima 1 , Kanae Nakayama 1 , Masanori Imai 1
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Lithium cations were observed to accelerate the hydrolysis of esters with hydroxides (KOH, NaOH, LiOH) in a water/tetrahydrofuran (THF) two-phase system. Yields in the hydrolysis of substituted benzoates and aliphatic esters using the various hydroxides were compared, and the effects of the addition of lithium salt were examined. Moreover, it was presumed that a certain amount of LiOH was dissolved in THF by the coordination of THF with lithium cation and hydrolyzed esters even in the THF layer, as in the reaction by a phase-transfer catalyst.

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中文翻译:

锂阳离子在四氢呋喃水溶液中酯类水解反应中的效率

在水/四氢呋喃 (THF) 两相系统中,观察到锂阳离子可加速酯类与氢氧化物(KOH、NaOH、LiOH)的水解。比较了使用各种氢氧化物水解取代苯甲酸酯和脂肪族酯的产率,并检查了添加锂盐的影响。此外,推测一定量的LiOH通过THF与锂阳离子的配位和水解酯甚至在THF层中溶解在THF中,如在相转移催化剂的反应中。

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更新日期:2021-05-31
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