Women in Chemistry

Deveson, Anne

doi:10.1002/chem.201100775

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…The dissolution of sodium nitrite in concentrated sulphuric acid followed by slow addition of the given amine to the prepared nitrosylsulphuric acid at below 10°C until the diazonium salt was formed (note: at higher temperatures the diazonium salt of the series will decompose and nitrogen gas will be evolved). 11 However, basic strength of the amine will be reduced; due to the presence of nitro and chloro group in the aromatic amine derivatives, therefore, the reaction needs stronger NO + HSO 4 -group.…”

Section: Synthesis Of the Diazo Componentsmentioning

confidence: 99%

Synthesis and Application of Some Alkali‐Clearable Azo Disperse Dyes Based on Naphthalimide Derivatives

Parvizi

Khosravi

Moradian

et al. 2009

J Chinese Chemical Soc

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A series of naphthalimide-based alkali-clearable azo disperse dyes containing a fluorosulfonyl group was synthesized. 4-Fluorosulfonylaniline, 4-fluorosulfonyl-2-nitroaniline and 6-chloro-4-fluorosulfonyl-2-nitroaniline as the diazo components were prepared from N-acetylsulfanilyl chloride and were subsequently coupled with 4-hydroxy-N-3-methoxypropyl-1,8-naphthalimide. The synthesized dyes and their intermediates were characterized by the use of DSC, FTIR, 1 H NMR, 13 C NMR, Mass spectroscopy and UV-visible spectroscopic techniques. Spectrophotometric investigations of prepared dyes in different solvents were carried out in order to obtain their absorption maxima, molar extinction coefficients and solvatochromic effects. The obtained dyes were applied to polyester fabric by the HT method and exhibited good leveling, wash and sublimation fastnesses and moderate light fastness. The synthesized dyes showed that incorporated fluorosulfonyl group to these dyes can be converted to the dyes containing a water soluble sulfonate group in the relatively mild alkaline conditions.

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Section: Synthesis Of the Diazo Componentsmentioning

confidence: 99%