@article { author = {shamaya, Andy N. S. and Al-Jeilawi, Oday H. R. and Khudhair, Noor Ali}, title = {Novel Synthesis of Some N-Hydroxy Phthalimide Derivatives with Investigation of Its Corrosion Inhibition for Carbon Steel in HCl Solution}, journal = {Chemical Methodologies}, volume = {5}, number = {4}, pages = {331-340}, year = {2021}, publisher = {Sami Publishing Company}, issn = {2645-7776}, eissn = {2588-4344}, doi = {10.22034/chemm.2021.131305}, abstract = {In the current study, new derivatives were synthesized by reaction of N-hydroxyphthalimide with chloro acetyl chloride in the presence of Et3N as a base to form 1,3-dioxoisoindolin-2-yl 2-chloroacetate (B1), which in turn enters several reactions with different amines where it interacts with primary amines to give 1,3-dioxoisoindolin-2-yl acetate derivatives (B2-B4) in basic medium, in the same way it interacts with these amines but with adding KNCS to form thiourea derivatives (B5-B7). It also reacts with diamines to give bis(azanediyl) derivatives (compounds B8-B10). The prepared derivatives were diagnosed using infrared FTIR and 1HNMR,13CNMR for some derivatives. Compounds B4, B5 and B9 were measured as corrosion inhibitors the inhibition efficiency varied from 85% to 99% and thermodynamic functions, i.e. Gibbs free energy, activation energy, enthalpy, entropy, were calculated for the derivatives at a concentration of (50 ppm) when mixed with carbon steel as additives and exposing the plate to an acidic medium of hydrochloric acid at a concentration of (1M) in different temperatures. The results revealed that as the temperature increases, the inhibition efficiency decreases.}, keywords = {NHPID,carbon steel,Corrosion Inhibition,Organic inhibitor,thiouria}, url = {https://www.chemmethod.com/article_131305.html}, eprint = {https://www.chemmethod.com/article_131305_5578d06766a670b549dea15bf8e41540.pdf} }