stilbene

Organic stilbene compounds are a typical class of such compounds.

The name stilbene was derived from the Greek word stilbos, which means shining.

In chemical terms, they are hydroxylated derivatives of stilbene.

Instances of the former include stilbene and azobenzene.

Stilbene may refer to one of the two isomers of 1,2-diphenylethene:

Stilbene can undergo photoisomerization under the influence of UV light.

Many stilbene derivates (stilbenoids) are present naturally in plants.

The activation energy of the electrocyclization is 73 kJ mol for stilbene.

Flexuosol A is a stilbene tetramer found in V. flexuosa.

The simplest example is stilbene, which has two geometric isomers, E and Z.

Stilbene exists as two possible isomers.

An example is maleic anhydride and stilbene, with reactivity ratio:

Treatment of benzal chloride with sodium gives stilbene.

Stilbenoids, such as resveratrol, are hydroxylated derivatives of stilbene.

Other names in common use include resveratrol synthase, and stilbene synthase.

Rhaponticin is a stilbene glucoside compound.

Ampelopsin B is a stilbene oligomer found in A. brevipedunculata var hancei.

Stilbene photocyclization is the coupling of two aromatic carbons in stilbenes upon ultraviolet irradiation.

Photocyclization can be carried out with ortho-, meta-, and para-substituted stilbene substrates.

Stilbene derivatives containing fused aromatic systems may cyclize using either of two nonequivalent ortho carbons.

Resveratrol (3,5,4'-trihydroxystilbene) is a stilbenoid, a derivate of stilbene.

Some of the laser dyes are rhodamine, fluorescein, coumarin, stilbene, umbelliferone, tetracene, malachite green, and others.

Stilbene can undergo stilbene photocyclization, an intramolecular reaction.

Therefore, while the trans-cis isomerization of azobenzene is considered a photochromic reaction, the analogous reaction of stilbene is not.

The stilbene glucosides astringin, isorhapontin (isorhapontigenin glucoside) and piceid can be found in the bark of Picea sitchensis.