Examples of 'chromene compound' in a sentence
Meaning of "chromene compound"
Chromene compound: In chemistry, a chromene compound refers to a class of organic compounds that contain a chromene ring structure, which is a type of benzopyran with various applications in medicinal chemistry and drug development
How to use "chromene compound" in a sentence
Basic
Advanced
chromene compound
The chromene compound has a chromene skeleton.
Illustrative examples of the chromene compound are given below.
This chromene compound exhibits a largefading rate.
A photochromic optical or other material comprising a chromene compound of any preceding claim.
Chromene compound and articles comprising the same.
A photochromic lens containing a chromene compound according to any preceding claim.
The chromene compound of the present invention exhibits an excellent effect.
The ratio is determined for each combination of a chromene compound and an aromatic compound.
The chromene compound of the present invention can be synthesized by a variety of methods.
The photochromic component may also comprise a further photochromic compound such as a chromene compound.
A chromene compound and a spirooxazine compound have also been known as photochromic compounds.
Particularly preferred examples of the chromene compound in the present invention include the following compounds.
The chromene compound having specific substituents introduced into the specific positions has been unknown.
Any known compound having a chromene skeleton and photochromism may be used as the chromene compound.
The chromene compound of the present invention may be produced by any synthesis process.
See also
The invention further provides a photochromic material containing the above chromene compound of the present invention.
The chromene compound of the present invention has high durability when Y is a sulfur atom.
A photochromic material containing a chromene compound of claim 1.
The chromene compound of the present invention has little initial coloration when X is a sulfur atom.
A photochromic material containing a chromene compound of any one of claims 1 to 3.
Chromene compound obtained in Example.
A photochromic polymerizable composition containing a chromene compound of claim 1 and a polymerizable monomer.
That is, the chromene compound usually develops orange to yellowish color tone.
The term " initial coloration " is connected with two properties of the chromene compound.
The chromene compound of the invention exhibits, by itself, excellent photochromic properties.
A photochromic polymerizable composition containing a chromene compound of any one of claims 1 to 3 and a polymerizable monomer.
However, a chromene compound with a relatively slow color fading speed is particularly suitably used.
Known examples of the photochromic compound are fulgimide compound, spirooxazine compound and chromene compound.
In such a case, a chromene compound can be favorably used as the other photochromic compound.
A photochromic material comprising a chromene compound of claim 1 or 2.
Therefore, this chromene compound has room for the improvement of this point.
A photochromic optical material containing a chromene compound of claim 1 or 2.
Therefore, this chromene compound has room for the improvement of this point as well.
Fig . 1 is a diagram of a proton nuclear magnetic resonance spectrum of a chromene compound of Example 1.
For example, the chromene compound obtained in Example 1 is represented as compound No.
The photochromic component ( B ) comprises a fulgide compound of formula ( 2 ), optionally together with a chromene compound.
The evaluation results obtained by using the chromene compound of Example 1 are shown in Table 4.
A chromene compound represented by the following formula ( 5 ) is particularly preferred.
A photochromic material comprising a chromene compound according to any one of claims 1 to 11.
A chromene compound having a basic skeleton represented by the following formula ( 1 ), wherein.
A photochromic lens containing a chromene compound according to any one of claims 1 to 11.
A chromene compound according to claim 9, wherein R1 is an isopropyl group or a t-butyl group.
A photochromic material comprising a chromene compound of claim 1 . A photochromic optical material containing a chromene compound of claim 1.
A chromene compound according to claim 3, wherein R1 is a methyl group or an ethyl group.
In general, the chromene compound is deteriorated by photo-oxidation.
A chromene compound according to claim 8, wherein R1 is an alkyl group having 3 to 6 carbon atoms.
Preferred examples of the chromene compound represented by the above formula ( 5 ) are given below.
The chromene compound used in the present invention is represented by the above-mentioned general formula ( I ).
The present invention is a chromene compound having a skeleton represented by the following formula ( 1 ).
A chromene compound according to claim I, namely,.
You'll also be interested in:
Examples of using Chromene
Show more
The chromene compound has a chromene skeleton
In the experimental examples a chromene is also used
This chromene compound exhibits a largefading rate
Examples of using Compound
Show more
I have the same compound on the bike
This compound will be evaluated in pulmonary hypertension
But it can only compound our problems
