Direct dyes containing cyclic amide groups

Szadowski, J.; Niewiadomski, Zbigniew

doi:10.1016/0143-7208(93)85021-q

Cited by 17 publications

(12 citation statements)

References 9 publications

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“…The light fastness was higher for dyes with more extended system and also in case of dyestuffs in which amino substituent was acylated or arylated. Fastness to washing and rubbing were similar for analogous 'imide' and 'phenyl' dyes [69]. Fig.…”

Section: + -+mentioning

confidence: 74%

A review on synthesis of nitrogen-containing heterocyclic dyes for textile fibers - Part 2: Fused heterocycles

Khattab

Rehan

2018

Egypt. J. Chem.

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I MPORTANCE of heterocyclic dyes has recently increased due to their deep shades, high tentorial strength, excellent colorfastness and brightness compared to azobenzene analogous. Development of novel synthetic approaches for fused heterocyclic dyes has remained a highly interesting but challenging proposition. An overview of the application of nitrogen-containing fused heterocyclic dyestuffs for textile coloration is presented. In this review, we provide details outlining the synthesis of recently prepared fused nitrogen-containing heterocyclic dyestuffs and their dyeing efficiency on textile fibers.

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Section: + -+mentioning

confidence: 74%

A review on synthesis of nitrogen-containing heterocyclic dyes for textile fibers - Part 2: Fused heterocycles

Khattab

Rehan

2018

Egypt. J. Chem.

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“…After confirming the absence of amine the solution was used for coupling with diazotised 5-aminobenzimidazolone or with diazotised aniline to give dyes 5 or 6 respectively. The diazotisation was carried out in accordance with the method described previously [3]. During coupling a pH of 7.5 was maintained, and afterwards the dyes were separated by adding sodium chloride to the solution.…”

Section: Synthesis Of the Reactive Dyes 5 Andmentioning

confidence: 99%

“…A solution of 0.02 mol H acid and 2.2 g sodium carbonate in 100 ml water was coupled with a solution of the diazonium salt of 5-aminobenzimidazolone or aniline, according to the procedure previously quoted [3]. After completion of coupling the dye solution was dripped into a suspension of 3.76 g cyanuric chloride formed by pouring a solution in acetone into 200 ml water at 5 °C.…”

Section: Synthesis Of Reactive Dyes 7 Andmentioning

confidence: 99%

“…For the experiments with dyes 9-14, dyeing was carried out according to the procedure described earlier [3].…”

Section: Dyeing Of Cottonmentioning

confidence: 99%

“…Symmetrical bifunctional dye molecules may be employed for this purpose (2) [1,2]. In our earlier investigations it was found that the introduction of a cyclic amide system into the azo dye molecule causes considerable increase in substantivity [3][4][5][6][7]. An especially effective way of raising the substantivity was obtained by introducing a benzimidazolone residue into the dye molecules.…”

Section: Introductionmentioning

confidence: 99%

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Reactive dyes containing a benzimidazolone residue

Szadowski

Niewiadomski

1999

Coloration Technology

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During the investigation of dyeing properties of reactive dyes containing a benzimidazolone residue the negative influence of salt concentration on their exhaustion was demonstrated. In the case of model dyes not containing the reactive group, change in aggregation state at various temperatures was investigated. It has been shown that the reactive dyes containing a benzimidazolone residue may undergo excessive aggregation in concentrated sodium chloride solution. This may cause difficulties in the dyeing process.

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Metal‐Ligand Cooperativity in Mn^I‐Catalysed N‐Formylation of Secondary Amides and Lactams Using CO₂ at Room Temperature

Chakraborty

Nath

Ray

et al. 2022

Chemistry A European J

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A Mn I catalyst featuring redox-active tridentate phenalenyl (PLY) ligand has been used for catalytic Nformylation of secondary amides and lactams under 1 atm CO 2 as a C 1 source at room temperature for the first time. The protocol is applicable to a wide range of secondary amides including heterocycles, bio-active cinnamide derivatives and the diversification of therapeutic molecules. In-depth mechanistic investigations based on experimental outcomes and DFT calculations suggested an unconventional metal-ligand cooperation, where a ligand-centred radical plays a crucial role in initiating the reaction process.

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Direct dyes containing cyclic amide groups

Cited by 17 publications

References 9 publications

A review on synthesis of nitrogen-containing heterocyclic dyes for textile fibers - Part 2: Fused heterocycles

A review on synthesis of nitrogen-containing heterocyclic dyes for textile fibers - Part 2: Fused heterocycles

Reactive dyes containing a benzimidazolone residue

Metal‐Ligand Cooperativity in Mn^I‐Catalysed N‐Formylation of Secondary Amides and Lactams Using CO₂ at Room Temperature

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Direct dyes containing cyclic amide groups

Cited by 17 publications

References 9 publications

A review on synthesis of nitrogen-containing heterocyclic dyes for textile fibers - Part 2: Fused heterocycles

A review on synthesis of nitrogen-containing heterocyclic dyes for textile fibers - Part 2: Fused heterocycles

Reactive dyes containing a benzimidazolone residue

Metal‐Ligand Cooperativity in MnI‐Catalysed N‐Formylation of Secondary Amides and Lactams Using CO2 at Room Temperature

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Metal‐Ligand Cooperativity in Mn^I‐Catalysed N‐Formylation of Secondary Amides and Lactams Using CO₂ at Room Temperature