Synthesis and Characterization of Iso E Super®

2011 ◽  
Vol 396-398 ◽  
pp. 1115-1118 ◽  
Author(s):  
Yue Lin Zhu ◽  
Ji Ne Wang ◽  
Chang Jian Xiong
Keyword(s):  
Industrial Production ◽  
Diels Alder ◽  
Synthesis And Characterization ◽  
Reaction Conditions ◽  
High Yields ◽  
Alder Adduct

A three-step route was used in the study to synthesize the Iso E Super®. Firstly, acetaldehyde was reacted with butanone to obtain 3-methyl-3pentene-2-one, which, in turn, was reacted with myrcene to form a subsitiuted acyl cyclohexene. Finally, the so called Diels-Alder adduct was cyclized. The structure of the products was confirmed by NMR, IR, GC-MS and Roman analysis. The method used has the advantages of readily availability of starting materials, mild reaction conditions, convenient manipulation and moderately high yields, so it has a promising prospect in industrial production

scholarly journals Synthesis and Optoelectronic Properties of Iptycene–Naphthazarin Dyes

Synlett ◽  
2018 ◽  
Vol 30 (01) ◽  
pp. 54-58 ◽  
Author(s):  
Timothy Swager ◽  
Cagatay Dengiz ◽  
You-Chi Wu
Keyword(s):  
Single Crystal ◽  
Electronic Properties ◽  
Diels Alder ◽  
Optoelectronic Properties ◽  
Synthesis And Characterization ◽  
Nmr Analysis ◽  
X Ray ◽  
Vis Spectroscopy

We report the synthesis and characterization of iptycene–naphthazarin dyes by using a sequential Diels–Alder approach. The tautomerization of naphthazarin was used as the key step in the synthesis, with structures confirmed by single-crystal X-ray and NMR analysis. The systematic trends in electronic properties were investigated by UV/Vis spectroscopy. BF2 complexes of the dyes were prepared by reaction with BF3·OEt2 in CH2Cl2.

scholarly journals Synthesis and Characterization of 9-Phenyl-9H-purin-6-amines from 5-Amino-1-phenyl-1H-imidazole-4-carbonitriles

2007 ◽  
Vol 4 (3) ◽  
pp. 372-375 ◽  
Author(s):  
Asieh Yahyazadeh ◽  
Fatemah Habibi
Keyword(s):  
Synthesis And Characterization ◽  
High Yields

9-Phenyl-9H-purin-6-amine derivatives have been synthesized in high yields by reaction between 5-amino-1-phenyl-1H-imidazole-4-carbonitrile with HC(OEt)3and Ac2O followed by reaction with ammonia.

Synthesis and Characterization of Thermoresponsive Xylan Networks by Diels–Alder Reaction

2019 ◽  
Vol 1 (4) ◽  
pp. 856-866 ◽  
Author(s):  
Wissam Farhat ◽  
Richard Venditti ◽  
Frederic Becquart ◽  
Ali Ayoub ◽  
Jean-Charles Majesté ◽  
...  
Keyword(s):  
Alder Reaction ◽  
Diels Alder ◽  
Synthesis And Characterization ◽  
Diels Alder Reaction

Synthesis and Characterization of Substituted μ-oxo-bis[tetra-phenylporphyrinatoiron] Compounds

2015 ◽  
Vol 748 ◽  
pp. 183-186
Author(s):  
Zhi Cheng Sun ◽  
Shu Ying Chen ◽  
Zhi Peng Guo ◽  
Mei Juan Cao ◽  
Lu Hai Li
Keyword(s):  
Infrared Spectra ◽  
Elemental Analysis ◽  
Aromatic Aldehydes ◽  
Synthesis And Characterization ◽  
Visible Spectroscopy ◽  
Reaction Conditions ◽  
One Pot ◽  
Optimum Reaction ◽  
Novel Method

A novel one-pot method for the synthesis of substituted μ-oxo-bis [tetraphenyl porphyrinatoiron] compounds ([TRPPFe]2O) from pyrrole and aromatic aldehydes was proposed and investigated in this paper. Four kinds of [TRPPFe]2O were designed and synthesized by one-pot reaction and characterized by elemental analysis, infrared spectra and ultraviolet-visible spectroscopy. Moreover, the [TRPPFe]2O yields of 18.7~22.4% could be obtained with this novel method under the optimum reaction conditions.

Hydrogels with multiple clickable anchor points: synthesis and characterization of poly(furfuryl glycidyl ether)-block-poly(ethylene glycol) macromonomers

2019 ◽  
Vol 10 (32) ◽  
pp. 4485-4494 ◽  
Author(s):  
Karishma K. Adatia ◽  
Silke Keller ◽  
Tobias Götz ◽  
Günter E. M. Tovar ◽  
Alexander Southan
Keyword(s):  
Ethylene Glycol ◽  
Glycidyl Ether ◽  
Diels Alder ◽  
Synthesis And Characterization ◽  
Poly Ethylene Glycol ◽  
Polyacrylamide Hydrogels ◽  
Anchor Points ◽  
Poly Ethylene

Functional polyacrylamide hydrogels containing multiple furfuryl anchor points for Diels–Alder reactions were prepared employing new macromonomers.

Synthesis and characterization of novel optically active poly(ester-imide-imine)s

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Abdol Reza Hajipour ◽  
Parniyan Roosta ◽  
Saeed Zahmatkesh ◽  
Arnold E. Ruoho
Keyword(s):  
Amino Acids ◽  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Optically Active ◽  
Synthesis And Characterization ◽  
Interfacial Polycondensation ◽  
Thermal Stabilities ◽  
Amino Phenol ◽  
High Yields

Abstract N,N´-(3,3´,4,4´-Benzophenonetetracarboxylic)-3,3´,4,4´-diimido-di-Lamino acids (1a-1d) and N,N´-pyromelliticdiimido-di-L-amino acids (2a-2d) are prepared from the reaction of 3,3´,4,4´-benzenetetracarboxylic-3,3´,4,4´- dianhydride or pyromellitic dianhydride with the corresponding L-amino acids in a solution of glacial acetic acid/pyridine (3:2) at refluxing temperature. 4-(4-((4- Hydroxyphenylimino)methyl)benzylidene amino) phenol (3) is prepared from 4- amino phenol and terephthaldialdehyde in refluxing ethanol. Interfacial polycondensation method was used to prepare the corresponding polymers (PEII1-8) in two immiscible solvents (water/dichloromethane). The resulting poly(esterimide- imine)s (PEIIs) having good inherent viscosities (0.13-1.25 dl g-1), optical activity and thermal stabilities is obtained in high yields.

Phosphate Substituted Phosphazenes as Dispersants in Colloidal Ceramic Processing

1991 ◽  
Vol 249 ◽  
Author(s):  
Sarah D. Burton ◽  
William D. Samuels ◽  
Gregory J. Exarhos
Keyword(s):  
Raman Spectroscopy ◽  
31P Nmr ◽  
Synthesis And Characterization ◽  
Ceramic Processing ◽  
Reaction Conditions ◽  
Solution State

ABSTRACTA new phosphate substituted phosphazene trimer [N3P3Cl5(OP(O)Ph2)] has been synthesized and characterized by 31p NMR and Raman spectroscopy. The course of each solution-state substitution was followed with 31P NMR, and this technique was used to determine the best reaction conditions for the experiment. Information such as phosphorus to phosphorus connectivity and purity were analyzed. This paper will discuss the synthesis and characterization of phosphazene moieties which are substituted by phosphorus(V) centered substituents.

scholarly journals Synthesis and Characterization of New Diiron and Diruthenium μ-Aminocarbyne Complexes Containing Terminal S-, P- and C-Ligands

2007 ◽  
Vol 62 (3) ◽  
pp. 427-438 ◽  
Author(s):  
Vincenzo G. Albano ◽  
Luigi Busetto ◽  
Fabio Marchetti ◽  
Magda Monari ◽  
Stefano Zacchini ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Diffraction Study ◽  
Coordination Mode ◽  
Bond Cleavage ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dithiocarbamate Ligand ◽  
High Yields

The diiron aminocarbyne complexes [Fe2{μ-CN(Me)(R)}(μ-CO)(CO)(NCMe)(Cp)2][SO3CF3] (R = Xy1, 1a; R = Me, 1b; R = CH2Ph, 1c; Xy1 = 2,6-Me2C6H3) undergo replacement of the coordinated nitrile by halides, diethyldithiocarbamate, and dicyanomethanide to give [Fe2{μ-CN(Me) (R)}(μ-CO)(CO)(X)(Cp)2] complexes (R = Me, X = Br, 4a; R = Me, X = I, 4b; R = CH2Ph, X = Cl, 4c; R = CH2Ph, X = Br, 4d; R = CH2Ph, X = I, 4e; R = Xy1, X = SC(S)NEt2, 5a; R = Me, X = SC(S)NEt2, 5b; R = Xy1, X = CH(CN)2, 7), in good yields. The molecular structure of 5a shows an unusual η1 coordination mode of the dithiocarbamate ligand. Similarly, treatment of [M2{μ-CN(Me) (R)}(μ-CO)(CO)(NCMe)(Cp)2][SO3CF3] (M = Fe, R = Xy1, 1a; M = Fe, R = Me, 1b; M = Ru, R = Xy1, 2a; M = Ru, R = Me, 2b) with a series of phosphanes generates the cationic complexes [M2{μ- CN(Me)(R)}(μ-CO)(CO)(P)(Cp)2][SO3CF3] (M = Fe, R = Xy1, P = PPh2H, 6a; M = Fe, R = Xy1, P = PPh3, 6b; M = Fe, R = Xy1, P = PMe3, 6c; M = Fe, R = Me, P = PMe2Ph, 6d; M = Fe, R = Me, P = PPh3, 6e; M = Fe, R = Me, P = PMePh2, 6f; M = Ru, R = Xy1, P = PPh2H, 6g; M = Ru, R = Me, P = PPh2H, 6h), in high yields. The molecular structure of 6a has been elucidated by an X-ray diffraction study. The reactions of [Fe2{μ-CN(Me)(Xyl)}(μ-CO)(CO)(NCR′)(Cp)2][SO3CF3] [R′ = Me, 1a; R′ = tBu, 3] with PhLi and PPh2Li yield [Fe2{μ-CN(Me)(Xy1)}(μ-CO)(CO)(Ph)(Cp)2] (8) and [Fe2{μ-CN(Me)(Xy1)}(μ-CO)(CO)(PPh2)(Cp)2] (9), respectively. The molecular structure of 8 has been ascertained by X-ray diffraction. Conversely, the reaction of 1a with MeLi generates the aminoalkylidene compound [Fe2{C(Me)N(Me)(Xy1)}(μ-CO)2(CO)(Cp)2] (10).Finally, the acetone complex [Fe2{μ-CN(Me)(Xy1)}(μ-CO)(CO)(OCMe2)(Cp)2][SO3CF3] (12) reacts with lithium acetylides to give complexes [Fe2{μ-CN(Me)(Xy1)}(μ-CO)(CO)(C≡CR)(Cp)2] (R = p-C6H4Me, 11a; R = Ph, 11b; R = SiMe3, 11c), in high yields. Filtration through alumina of a solution of 11a in CH2Cl2 results in hydration of the acetylide group and C-Si bond cleavage, affording [Fe2{μ-CN(Me)(Xy1)}(μ-CO)(CO){C(O)Me}(Cp)2] (12).

Synthesis and Characterization of Polysulfonyldiphenylene Phenylphosphonate with High Melting Range

2011 ◽  
Vol 396-398 ◽  
pp. 2342-2345
Author(s):  
Zhong Wei Wang ◽  
Hao Dong Duan ◽  
Qing Yu
Keyword(s):  
Thermal Stability ◽  
Reaction Time ◽  
Thermogravimetric Analysis ◽  
Synthesis And Characterization ◽  
Target Product ◽  
High Melting ◽  
Melting Range ◽  
Reaction Conditions ◽  
Good Thermal Stability

Polysulfonyldiphenylene phenylphosphonate (PSPPP) with high melting range of 197 to 205 °C was synthesized via molten polycondensation method. The effect of material ratio, reaction temperature and reaction time of the method was studied, and the preferred reaction conditions were obtained. The target product was characterized by FTIR and thermogravimetric analysis (TGA) was carried out to confirm the thermal stability. The PSPPP synthesized in this paper showed fairly good thermal stability.

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