triphenylmethane

For example, triphenylmethane can be described as a methylidyne group connected to three phenyl groups.

There are many yellow and green dyes commercially applied to fibers that are related to triphenylmethane.

The effect of triphenylmethane dyes on the intracellular growth of influenza virus A.

Bromopyrogallol red is also a triphenylmethane indictor.

He completed his Ph.D. in 1917 on optical studies of bismuth and triphenylmethane derivatives.

For example, triphenylmethane (PhCH) has three phenyl groups attached to the same carbon centre.

Triarylmethane dyes are synthetic organic compounds containing triphenylmethane backbones.

Examples are basic dyes and triphenylmethane dyes, e.g. pararosaniline derivatives.

Friedel-Crafts reactions have been used in the synthesis of several Triphenylmethane and xanthene dyes .

Many are azo dyes, although anthraquinone and triphenylmethane compounds are used for colors such as green and blue.

Bisacodyl is a diphenylmethane (in fact, a modified triphenylmethane) derivative and was first used as a laxative in 1953 due to its similarity to phenolphthalein.

Triphenylmethane can be synthesized by Friedel-Crafts reaction from benzene and chloroform with aluminium chloride catalyst:

In 1984 Olmstead presented the lithium crown ether salt of the triphenylmethyl carbanion from triphenylmethane, n-butyllithium and 12-crown-4 at low temperatures:

The blue disulfonated triphenylmethane dyes were first produced in 1913 by Max Weiler who was based in Elberfeld, Germany.

Triphenylmethane related: Acid dyes having structures related to triphenylmethane predominate in the milling class of dye.

Triphenylmethane is the basic skeleton of many synthetic dyes called triarylmethane dyes, many of them are pH indicators, and some display fluorescence.

Triphenylmethane is significantly more acidic than most other hydrocarbons because the planar trityl anion is stabilized by extensive delocalization over three phenyl rings.

Dylon's machine fabric dye and hand dye both contain reactive azo dyes, triphenylmethane dyes, sodium carbonate and sodium chloride.

Coomassie Brilliant Blue is the name of two similar triphenylmethane dyes that were developed for use in the textile industry but are now commonly used for staining proteins in analytical biochemistry.

Gomberg was able to distinguish this compound from triphenylmethane (elemental analysis was not an option given the small differences in the hydrogen fractions of 6.29% and 6.60%) by nitration of 5 with nitric acid to 6.

Bromocresol Green (BCG) is a dye of the triphenylmethane family (triarylmethane dyes), which is used as a pH indicator and as a tracking dye for DNA agarose gel electrophoresis.

Adding n-butyllithium to triphenylmethane in THF at low temperatures followed by 12-crown-4 results in a red solution and the salt complex precipitates at 20 C. The central C-C bond lengths are 145 ppm with the phenyl ring propelled at an average angle of 31.2 .

While he was at Munich, Fischer continued to work on the hydrazines and, working there with his cousin Otto Fischer, who had followed him to Munich, he and Otto worked out a new theory of the constitution of the dyes derived from triphenylmethane, proving this by experimental work to be correct.