Department of Chemistry, Faculty of Mathematics and Natural Sciences, Brawijaya University, Malang, Indonesia
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@article{JKSA26144, author = {Siti Mariyah Ulfa and Fath Dwisari and Ade Cintyia Sally and Mohammad Rahman}, title = {Effect of methyl substituent on the solubility of 1,4-benzoquinone derivatives in n-octanol/water system}, journal = {Jurnal Kimia Sains dan Aplikasi}, volume = {23}, number = {5}, year = {2020}, keywords = {1,4-benzoquinone; decarboxylation; bioavailability; coefficient partition}, abstract = {The solubility of the compound is a crucial task for new drug design. Quinone is a promising candidate to develop as a new drug. In this research, the synthesis of 1,4-benzoquinone derivatives, that is, 2-(5-bromoamyl)-3,5-dimethyl-1,4-benzoquinone ( 2a ) and 2-(5-bromoamyl)-5-methyl-1,4-benzoquinone ( 2b ) were carried out by decarboxylation and insertion reaction of alkyl bromides. The product 2a and 2b are purified using SiO 2 gel column chromatography and analyzed by UV-Visible, FT-IR, and NMR. The yield of 2a is 13.75%, and 2b is 4.04%. The solubility of 2a and 2b , expressed by log P, is measured in the n-octanol/water (3:7 (v/v)) system by the shake flask method. The log P of 2a and 2b are 2.99 and 1.36, respectively. It is showed that the log P of 2a is higher compared to 2b . The presence of two methyl substituents on the quinone ring of 2a supports the increase of hydrophobicity of the compound in the n-octanol/water system.}, issn = {2597-9914}, pages = {142--146} doi = {10.14710/jksa.23.5.142-146}, url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/26144} }
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Facile synthesis of 5-Isopropyl-2,3-dimethylbenzene-1,4-diol by Friedel-Crafts and Determination of Partition Coefficient in n- Octanol/Water
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