How do you name a fused ring?
How do you name a fused ring?
1 Hydrocarbons consisting of four or more ortho-fused benzene rings in a rectilinear arrangement are named by citing a numerical prefix denoting the number of benzene rings followed by the term ‘-acene’ with elision of an ‘a’ .
How do you name fused heterocyclic compounds?
The name of the heterocyclic ring is chosen as the parent compound and the name of the fused ring is attached as a prefix. The prefix in such names has the ending ‘o’, i.e., benzo, naphtho and so on.
What is a fused ring example?
Example: Phenalene is considered as being composed of three benzene rings, each of which is ortho- and peri-fused to the other two. Any atom of a fused ring system which is common to two or more rings is termed a fusion atom.
What are fused heterocyclic compounds?
The oxygen-containing heterocycles are an important class of compounds in organic chemistry. These compounds are used as drugs (coumarin and oxazole), solvent (tetrahydrofuran), flavors, and fragrances (lactones). Some of the fused compounds are coumarin (benzopyrans) and piclozotan (benzoxazepines).
What are two fused benzene rings called?
Polycyclic aromatic hydrocarbons
Polycyclic aromatic hydrocarbons consist of two or more benzene rings fused together.
Is a 6 membered heterocyclic compound?
The study of heterocyclic chemistry focuses especially on unsaturated derivatives, and the preponderance of work and applications involves unstrained 5- and 6-membered rings. Included are pyridine, thiophene, pyrrole, and furan. Another large class of heterocycles refers to those fused to benzene rings.
Which compound is most basic?
In benzylamine, the lone pair of electrons are not in conjugation or attached with the benzene ring and thus are free for donation to an electrophile (i.e. an electron deficient group) or to combine with other elements. So, the compound benzylamine is the most basic compound among the given options.
Is anthracene a cyclic compound?
Anthracene, also called paranaphthalene or green oil, a solid polycyclic aromatic hydrocarbon (PAH) consisting of three benzene rings derived from coal-tar, is the simplest tricyclic aromatic hydrocarbon. It is on the EPA’s priority pollutant list. It is an ortho-fused polycyclic arene and a member of acenes.
Which is not a heterocyclic compound?
But benzene is an aromatic compound of carbon that has only carbon and hydrogen atoms and no other atoms are present in it. Coming to naphthalene, it has ten carbon atoms in its structure and besides that it has hydrogen atoms. Hence, this is also not a heterocyclic compound.