Examples of 'heteroaromatic rings' in a sentence
Meaning of "heteroaromatic rings"
heteroaromatic rings - This phrase is used in organic chemistry to describe ring structures that contain atoms of different elements in addition to carbon, typically nitrogen, oxygen, or sulfur
How to use "heteroaromatic rings" in a sentence
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heteroaromatic rings
These heteroaromatic rings may additionally be substituted.
These compounds thus contain no heteroaromatic rings.
Heteroaromatic rings are monocyclic or fused bicyclic ring systems.
The biaryl core mandatorily consists of two heteroaromatic rings.
Preferred heteroaromatic rings include pyridinyl and thiazolyl.
When Ar is a heteroaromatic ring preferred heteroaromatic rings are.
These heteroaromatic rings may be fused to other aromatic systems.
Furthermore, the biaryl core mandatorily consists of two heteroaromatic rings.
The heteroaromatic rings are connected vÃa a ring carbon atom to the amide group.
Representative of such 5-membered heteroaromatic rings fused with a phenyl is benzimidazole.
Heteroaromatic rings may be unsubstituted or substituted with from 1 to 4 substituents on the ring.
More preferred monocyclic heteroaromatic rings include thienyl, furanyl, and pyridyl.
The structure implied by 54 includes bicyclic molecules which may incorporate fused aromatic or heteroaromatic rings.
Preferred bicyclic heteroaromatic rings are ring systems wherein both rings in the system are aromatic.
The fused rings may also comprise one or more aromatic rings, including heteroaromatic rings.
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Bicyclic heteroaromatic rings include ring systems wherein only one ring in the system is aromatic.
Included in the meaning of " substituted " are heteroaromatic rings.
Among the preferred heteroaromatic rings include pyridinyl, pyrimidinyl and thiazolyl.
By the term " 6-membered aromatic ring " is meant phenyl and heteroaromatic rings such as pyridyl.
Among these, heteroaromatic rings which are not bound vÃa a nitrogen atom are preferred.
Preferred examples of further bis ( alkylidene ) groups which contain heteroaromatic rings therein are as follows,.
Examples of fused heteroaromatic rings are, quinoline, isoquinoline, carbazole.
The term " HetAr " includes, for example, heteroaromatic rings such as pyrimidine and pyridine.
Preferably, heteroaromatic rings R2a are unsubstituted or mono-substituted by lower alkyl, preferably methyl.
Examples of aromatic and heteroaromatic rings include benzene, naphthalene, pyridine, quinoline, isoquinoline, etc.
Examples of heteroaromatic rings R4 are pyridinyl, pyrazinyl and thiazolyl, optionally substituted as defined above.
Examples of not fused heteroaromatic rings are, pyrrole, imidazole, pyrazole, pyrazine, pyrimidine, pyridine.
Examples of heteroaromatic rings R3a are furyl, thienyl and pyridinyl, optionally substituted as defined above.
The preferred six-membered heteroaromatic rings include, for example, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, and triazinyl.
Such heteroaromatic rings include, for example, pyridazinyl, isoxazolyl, isothiazolyl, and pyrazolyl.
Among the preferred heteroaromatic rings are included pyridinyl, pyrimidinyl, thiazolyl, and imidazolyl.
Bicyclic heteroaromatic rings contain from 8 to 12 member atoms, preferably 9 or 10 member atoms in the ring.
More preferred bicyclic heteroaromatic rings include benzo [ B ] thiazolyl, benzo [ B ] thiophenyl, and benzoxazolyl.
Preferred heteroaromatic rings include thienyl, thiazolo, purinyl, pyrimidyl, pyridyl, and furanyl.
Among the preferred heteroaromatic rings are pyridinyl, pyrazinyl, pyrimidinyl, thiazolyl, oxazolyl, and imidazolyl.
Most preferable heteroaromatic rings R3a are furyl, thienyl, 3-methylthienyl and pyridinyl.
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Examples of using Heteroaromatic
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No aromatic or heteroaromatic moiety as a component of an ester or acetal
This was the first synthesis of a heteroaromatic compound
No aromatic or heteroaromatic moiety as a component of an ester or ketal
