Synthesis of imines, diimines and macrocyclic diimines as possible ligands, in aqueous solution

Simion, Alina; Simion, Cristian; Kanda, Tadeshige; Nagashima, Shigeru; Mitoma, Yoshiharu; Yamada, Tomoko; Mimura, Keisuke; Tashiro, Masashi

doi:10.1039/b102749m

Cited by 76 publications

(59 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dialdehyde [1,2-bis(2-carboxyaldehydephenoxy)-ethane] used as the precursor, was synthesized according to the reported method [34]. Novel lariat ethers were synthesized by following the previous procedure [35] and characterized as follows.…”

Section: Synthesismentioning

confidence: 99%

Highly Selective Nd(III) Sensors: Novel Macrocyclic Compounds for Potentiometric Determination of Neodymium

Singh

Jain

2010

Electroanalysis

View full text Add to dashboard Cite

Conductometric studies on the complexation properties of two newly synthesized lariat ethers viz 1,5-di(cyanoethane)-2,4 : 7,8 : 13,14-tribenzo-1,5-diaza-9,12-dioxacyclopentadeca-2,7,13-triene (L 1 ) and 1,5-di(cyanoethane)-2,3,4-pyridine-7,8 : 13,14-dibenzo-1,3,5-triaza-9,12-dioxa cyclopentadeca-2,7,13-triene (L 2 ) towards various metal ions in acetonitrile solutions revealed the formation of 1 : 1 ligand metal complexation. These compounds were explored as neutral ionophores for the fabrication of Nd 3þ selective and sensitive membrane coated graphite electrodes (CGEs). Among all the electrodes prepared, CGEs with membrane composition L 1 (5%) : NaTPB(3%) : NPOE (57%) : PVC (35%) and L 2 (5%) : NaTPB(3%) : NPOE (53%) : PVC (39%) showed best performance. Both the electrodes showed Nernstian response towards Nd 3þ ions over a wide concentration range with detection limits 3.8 Â 10 À8 mol L À1 and 1.6 Â 10 À8 mol L À1 respectively. These electrodes showed a fast response time of < 15 s and could be used over a period of three months without significant divergence in their characteristics. The proposed electrodes revealed very good selectivity for Nd 3þ ions over several ions. However, higher concentration of Co 2þ , La 3þ , Pr 3þ and Yb 3þ caused some interference. The potentiometric response of these electrodes was excellent in the range of pH 3.5 to 7.6 and they could tolerate up to 20% (v/v) nonaqueous media in the test solutions. These electrodes were used successfully as indicator electrode in the potentiometric titration of Nd 3þ against EDTA and also in the quantitative determination of Nd 3þ ions from binary mixtures and water samples.

show abstract

Section: Synthesismentioning

confidence: 99%

Highly Selective Nd(III) Sensors: Novel Macrocyclic Compounds for Potentiometric Determination of Neodymium

Singh

Jain

2010

Electroanalysis

View full text Add to dashboard Cite

show abstract

“…More than a decade ago, we have developed an interesting protocol for the synthesis of Schiff bases in which the condensation process was performed in a less expected solvent for this purpose, that is water [1,2]. By using this aqueous imine synthesis protocol, we planned to perform the synthesis of recalcitrant diimines 1, starting from low-reactivity carbonyl compounds and aliphatic diamines (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Serendipitous synthesis of a cyclic formamidine. Application to the synthesis of polyazamacrocycles

Simion

Gherase

Sima

et al. 2015

Comptes Rendus. Chimie

Self Cite

View full text Add to dashboard Cite

“…16 We noticed from the literature that imines can be conveniently prepared in pure water without the presence of a catalyst from corresponding amines and aldehydes. 17 Since we were interested in preparing imidazolidines in a fast and easy way, we wanted therefore to investigate, if it would be also possible to prepare aminals in a similar way. So far aminals have never been synthesized and isolated in pure water.…”

Section: Introductionmentioning

confidence: 99%

Preparation of aminals in water

Jurčı́k

Wilhelm

2004

Tetrahedron

View full text Add to dashboard Cite

Synthesis of imines, diimines and macrocyclic diimines as possible ligands, in aqueous solution

Cited by 76 publications

References 38 publications

Highly Selective Nd(III) Sensors: Novel Macrocyclic Compounds for Potentiometric Determination of Neodymium

Highly Selective Nd(III) Sensors: Novel Macrocyclic Compounds for Potentiometric Determination of Neodymium

Serendipitous synthesis of a cyclic formamidine. Application to the synthesis of polyazamacrocycles

Preparation of aminals in water

Contact Info

Product

Resources

About