Equilibrium Solubility Determination and Correlation of Isobutoxyphenylboronic Acids in Organic Solvents,Journal of Chemical & Engineering Data

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Equilibrium Solubility Determination and Correlation of Isobutoxyphenylboronic Acids in Organic Solvents
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-08-13 , DOI: 10.1021/acs.jced.0c00468
Paweł Leszczyński ₁ , Agnieszka Lewandowska ₁ , Tadeusz Hofman ₁ , Agnieszka Adamczyk-Woźniak ₁ , Andrzej Sporzyński ₁

Affiliation

The solubility of three isomers of isobutoxyphenylboronic acid in several organic solvents (chloroform, 3-pentanone, acetone, dipropyl ether, and methylcyclohexane) has been determined experimentally by a dynamic method, in which the disappearance of turbidity was determined by light intensity measurements using a luminance probe. The solubility of the ortho-isobutoxyphenylboronic acid is significantly higher than that of other isomers for all of the tested solvents. It can be explained by the differences in the structures of ortho compared with meta and para isomers. Introduction of the isobutoxy group into the phenylboronic acid ring generally increases the solubility in most solvents: it is higher for all of the investigated compounds in comparison with phenylboronic acid for all investigated solvents, except dipropyl ether. Experimental data were correlated by the λh-equation, which gave better results than other models.

中文翻译：

异丁氧基苯基硼酸在有机溶剂中的平衡溶解度测定和相关性

异丁氧基苯基硼酸的三种异构体在几种有机溶剂（氯仿，3-戊酮，丙酮，二丙基醚和甲基环己烷）中的溶解度已通过动力学方法进行了实验确定，其中浊度的消失是通过使用亮度探头。邻位的溶解度对于所有测试的溶剂，-异丁氧基苯基硼酸明显高于其他异构体。可以通过邻位与间位和对位异构体的结构差异来解释。将异丁氧基引入苯硼酸环中通常会提高其在大多数溶剂中的溶解度：与所有苯并硼酸相比，除二丙醚外，所有所研究化合物的溶解度均高于苯硼酸。实验数据是由λ相关^ h -equation，这给了比其他模型更好的效果。

更新日期：2020-09-10

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