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Hu JH, Li JB, Qi J, Sun Y. Studies on the crystal structure and characterization of N-(4-acetylphenyl)-N’-(2-nitrobenzoyl)-thiourea. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2015.1050016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Jing-Han Hu
- College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Jian-Bin Li
- College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - Jing Qi
- College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
| | - You Sun
- College of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, P. R. China
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Ferreira RB, Tormena CF, Almeida WP. Synthesis and spectroscopic analysis of substituted 2-aminothiazolines. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.12.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ghosh A, Sen SK, Banerjee S, Voit B. Solubility improvements in aromatic polyimides by macromolecular engineering. RSC Adv 2012. [DOI: 10.1039/c2ra20175e] [Citation(s) in RCA: 113] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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New heat resistant poly (thiourea-amide-imide)s derived from 1-(1,3-dioxo-2-(4-aminophenyl) isoindolin-5-yl)carbonyl-3-(4-aminophenyl) thiourea for high performance applications. HIGH PERFORM POLYM 2011. [DOI: 10.1177/0954008311424804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Novel heat-resistant and organosoluble poly(thiourea-amide-imide)s (PTAIs) were synthesized through the condensation of trimellitic anhydride chloride (TMAC)-derived imide ring bearing diamine (1-(1,3-dioxo-2-(4-aminophenyl)isoindolin-5-yl)carbonyl-3-(4-aminophenyl) thiourea) with various diacid chlorides. Physical properties of PTAIs including crystallinity, organosolubility, thermal properties, flame retardancy, solution viscosity along with molecular weights were investigated. Accordingly, polymers bearing phenylthiourea moieties displayed an amorphous nature and were readily soluble in amide solvents having ηinh of 1.11–1.37 dL g−1. Moreover, gel permeation chromatography measurements revealed Mw around 76 869–80 391. Thermal stability of these polymers was ascertained via 10% weight loss temperatures around 517–544°C in an inert atmosphere. Furthermore, glass transition temperatures of PTAIs were found to be 286–292°C. Limiting oxygen index (LOI) measurements indicated that new copolymers were efficiently flame retardant as compared to several reported materials. Hence, incorporation of thiourea functionalities into the polymer backbone was demonstrated to be an effective way to enhance their thermal properties and flame retardancy.
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Kausar A, Zulfiqar S, Ahmad Z, Ishaq M, Ilyas Sarwar M. Novel aromatic and aromatic-aliphatic poly(thiourea-amide)s for the extraction of toxic heavy metal ions. J Appl Polym Sci 2011. [DOI: 10.1002/app.34983] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kausar A, Zulfiqar S, Ishaq M, Ahmad Z, Sarwar MI. Synthesis and thermal behavior of novel poly(thiourea-amide)s derived from 1-(4-aminobenzoyl)-3- (3-aminophenyl) thiourea. HIGH PERFORM POLYM 2011. [DOI: 10.1177/0954008311412405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The novel difunctional monomer, 1-(4-aminobenzoyl)-3-(3-aminophenyl) thiourea (ABAPT), was synthesized by the reduction of NBNPT (1-(4-nitrobenzoyl)-3-(3-nitrophenyl) thiourea). The characterization of the monomers was carried out using spectroscopic and elemental analyses. A series of novel aromatic and aromatic-aliphatic poly (thiourea-amide)s (PAMDs) were obtained through the condensation of ABAPT with various diacid chlorides (terephthaloyl, isophthaloyl, sebacoyl and adipoyl chloride). Structural elucidation of the resulting polyamides was carried out by FTIR, 1H- and 13C-NMR techniques along with solvent miscibility, viscosity, molecular weight, crystallinity, non-flammable and thermal studies. The polymers bearing phenylthiourea moieties in the backbone were obtained in quantitative yield. PAMDs having inherent viscosities of 1.02-1.32 dL g−1 exhibited good organosolubility in amide solvents ( N, N-dimethylacetamide, dimethylformamide, dimethyl sulfoxide and N-methylpyrrolidone). X-ray diffraction studies specified crystalline behavior of new polyamides. Gel permeation chromatography measurements disclosed Mw around 34 000-65 000. The thermogravimetric analyses and limiting oxygen index measurements indicated that aromatic polyamides were stable up to 500 °C and were adequately flame retardant. Moreover, their glass transition temperatures were found to be 265-273 °C.
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Affiliation(s)
- Ayesha Kausar
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Sonia Zulfiqar
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Muhammad Ishaq
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Zahoor Ahmad
- Department of Chemistry, Faculty of Science, Kuwait University, Safat, Kuwait
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Synthesis and characterization of novel thermally stable aromatic and semiaromatic polyamides derived from thiourea-based flexible diacid dichlorides. MONATSHEFTE FUR CHEMIE 2010. [DOI: 10.1007/s00706-010-0422-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kausar A, Zulfiqar S, Ahmad Z, Ilyas Sarwar M. Novel thermally stable poly(thiourea–amide–imide)s bearing CS moieties and pyridine units in the backbone: Synthesis and properties. Polym Degrad Stab 2010. [DOI: 10.1016/j.polymdegradstab.2010.07.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kausar A, Zulfiqar S, Ahmad Z, Sarwar MI. Facile synthesis and properties of a new generation of soluble and thermally stable polyimides. Polym Degrad Stab 2010. [DOI: 10.1016/j.polymdegradstab.2010.07.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Novel poly(thiourea-ether-imide)s derived from 4,4′-oxydiphenyl-bis(thiourea): probing the possibility for high-temperature applications. POLYM INT 2010. [DOI: 10.1002/pi.2979] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Fahmy AF, Ali N, Abdelhamid H, Shiba S, Hemdan MM. The Utility of p-N-Succinimidobenzoyl Isothiocyanate in Synthesis of Benzoxazole, Quinazoline, Pyrimidine, 1,2,4-Triazoline, 1,3-Thiazolidine, and Thiourea Derivatives. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500903127557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- A. F. Fahmy
- a Department of Chemistry , Faculty of Science, Ain Shams University , Abbasia, Cairo, Egypt
| | - N. Ali
- a Department of Chemistry , Faculty of Science, Ain Shams University , Abbasia, Cairo, Egypt
| | - H. Abdelhamid
- a Department of Chemistry , Faculty of Science, Ain Shams University , Abbasia, Cairo, Egypt
| | - S. Shiba
- a Department of Chemistry , Faculty of Science, Ain Shams University , Abbasia, Cairo, Egypt
| | - M. M. Hemdan
- a Department of Chemistry , Faculty of Science, Ain Shams University , Abbasia, Cairo, Egypt
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Margraf G, Pattacini R, Messaoudi A, Braunstein P. Intra- and inter-molecular phosphoryl migration in phosphinothiazolines; precursors to polynuclear complexes and bimetallic coordination polymers. Chem Commun (Camb) 2006:3098-100. [PMID: 16855698 DOI: 10.1039/b603495k] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two tautomers of the new phosphinoaminothiazoline Ph2PNHC=NCH2CH2S, obtained from the reaction of 2-amino-2-thiazoline (ATHZ) with Ph(2)PCl, have been structurally characterized and the intermediate formation of the diphosphine Ph2PN=CN(PPh2)CH2CH2S has been demonstrated experimentally and by DFT calculations; reacts with [AuCl(THT)] to give [(AuCl)2] whereas the bidentate metalloligand cis-[Pt(1(-H))2] reacts with AgOTf to form the Ag-Pt coordination polymer [Ag(infinity)[Pt(1(-H))2](infinity)](OTf)(infinity).
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Affiliation(s)
- Günter Margraf
- Laboratoire de Chimie de Coordination, Université Louis Pasteur (UMR 7177 CNRS), Institut Le Bel, 4 rue Blaise Pascal, F-67070, Strasbourg, France
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Bosc JJ, Pourageaud F, Girodet PO, Molimard M, Jarry C. Synthesis and anti-histaminic evaluation of N-phenyl-(alkyl)-5-(dialkylamino)methyl-2-amino-2-oxazolines. J Enzyme Inhib Med Chem 2003; 18:139-45. [PMID: 12943197 DOI: 10.1080/1475636031000093570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
New N-phenyl(alkyl)-5-(dialkylamino)methyl-2-amino-2-oxazolines, 5a-e, have been synthesized from the corresponding 3-phenyl(alkyl)carbamoyl-2-iminooxazolidines 2. A two-stage hydrolysis reaction led finally to the corresponding ring-opened N-phenyl(alkyl)-N'-[1-(3-(dialkylamino)-propan-2-ol)]ureas 4. The oxazoline ring was regenerated through an intramolecular nucleophilic substitution involving an halogen atom introduced by the reaction of thionyl chloride on 4. Pharmacological properties of 5a-e were evaluated on histaminic and adrenergic receptors in guinea-pig trachea and rat aorta. Compounds 5b and 5e showed a selective anti-histaminic effect on guinea-pig airways, but a significant response was obtained for a concentration >10(-6) M. No pharmacological activity was obtained with oxazoline 5c whereas oxazolines 5a and 5d seemed to present a non-selective effect on the contractile mechanism of the smooth muscle cell.
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Affiliation(s)
- J J Bosc
- EA 2962-Pharmacochimie, UFR des Sciences Pharmaceutiques, Université Victor Segalen Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux Cedex, France
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Matoga M, Forfar I, Chaimbault C, Guillon J, Péhourcq F, Bosc JJ, Rettori MC, Jarry C. Derivatization of (+/-)-5-[(2-methylphenoxy)methyl]-2-amino-2-oxazoline, an imidazoline binding sites ligand, with (+)-(R)-alpha-methylbenzyl isocyanate for drug monitoring purposes. J Enzyme Inhib Med Chem 2002; 17:375-9. [PMID: 12683672 DOI: 10.1080/1475636021000005640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The derivatization of racemic 5-[(2-methylphenoxy)methyl]-2-amino-2-oxazoline, developed as an imidazoline binding sites ligand, with (+)-(R)-alpha-methylbenzyl isocyanate was performed in chloroform. The reaction led to two pairs of diastereomers, which were separated by RP-HPLC. A kinetic study of the derivatization reaction was achieved in order to establish conditions suitable for experimental drug monitoring.
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Affiliation(s)
- Myriam Matoga
- EA 2962-Pharmacochimie, Université Victor Segalen Bordeaux 2, 146 rue Léo Saignat, 33076 Bordeaux cedex, France
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