Examples of 'furan ring' in a sentence
Meaning of "furan ring"
furan ring: a chemical structure consisting of a five-membered aromatic ring with four carbon atoms and one oxygen atom. Furan rings are found in various organic compounds and are important building blocks in organic chemistry
How to use "furan ring" in a sentence
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furan ring
The defining structural component is a furan ring with a nitro group.
The furan ring may be fused in various ways producing several different isomers.
New photochromic chromenes annulated with a furan ring have been synthesized.
It is an aromatic compound that has two benzene rings fused to a central furan ring.
Benzofuran reacts preferentially in the furan ring rather than in the benzene ring.
Furanic compounds are herein understood to be any compound having a furan ring.
The chemical compound hydroxymethylfurfural contains a furan ring comprised of alcohol and aldehyde groups.
Each scheme represents a different substitution pattern for the furan ring.
Preferably a pyridine ring, a furan ring and a thiophen ring are exemplified.
Psoralens are tricyclic compounds formed by the linear fusión of a furan ring with a coumarin.
Compounds containing an unfused furan ring ( whether or not hydrogenated ) in the structure.
A furanolactone is a heterocyclic chemical compound that contains both a lactone and a furan ring structure.
A compound according to claim 21 wherein the furan ring is substituted in the 2 position.
Scheme 4 describes a synthesis of a different substitution pattern on a furan ring.
The poor scavenging ability of trans-FAA, having a furan ring instead, was a remarkable contrast.
See also
There can be preferably used a benzene ring, a thiophene ring or a furan ring.
The chemical structure of furanocoumarins consists of a furan ring fused with a coumarin.
The prototypical structure consists of four six-membered rings and a furan ring.
Examples of the above hetero ring include thiophene ring, furan ring and pyridine ring.
The moiety Ar is preferably a benzene, naphthalene, thiophene, thienopyrazine, pyridine, pyrazine, indole or furan ring.
The compound according to claim 3, wherein Y ring is a furan ring or a thiophene ring.
The compound of any one of claims 1 to 6, wherein R3 is a furan ring.
Finally, the protecting group on the diol moiety of the furan ring is removed.
One or two, preferably two C1-C4 alkyl groups may substitute on the furan ring.
Isopsoralens, like psoralens, are tricyclic compounds formed by the fusión of a furan ring with a coumarin.
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Examples of using Furan
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Dioxin and furan air monitoring project
On the monitoring of the presence of furan in foodstuffs
Furan is therefore listed as a possible human carcinogen
Examples of using Ring
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And place a ring upon her hand
Ring tones will not hold up in court
I had to go into the ring to finish it myself
