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  2. Alicyclic compound - Wikipedia

    en.wikipedia.org/wiki/Alicyclic_compound

    Cyclohexene is an alicyclic compound with a double bond. Monocyclic cycloalkenes are cyclopropene, cyclobutene, cyclopentene, cyclohexene, cycloheptene, cyclooctene, and so on. Bicyclic alkenes include norbornene and norbornadiene. Two more examples are shown below, methylenecyclohexane on the left and 1-methylcyclohexene on the right:

  3. Aliphatic compound - Wikipedia

    en.wikipedia.org/wiki/Aliphatic_compound

    Acyclic aliphatic/non-aromatic compound Cyclic aliphatic/non-aromatic compound (cyclobutane)In organic chemistry, hydrocarbons (compounds composed solely of carbon and hydrogen) are divided into two classes: aromatic compounds and aliphatic compounds (/ ˌ æ l ɪ ˈ f æ t ɪ k /; G. aleiphar, fat, oil).

  4. Open-chain compound - Wikipedia

    en.wikipedia.org/wiki/Open-chain_compound

    In chemistry, an open-chain compound (or open chain compound) or acyclic compound (Greek prefix α 'without' and κύκλος 'cycle') is a compound with a linear structure, rather than a cyclic one. [1] An open-chain compound having no side groups is called a straight-chain compound (also spelled as straight chain compound).

  5. Heterocyclic compound - Wikipedia

    en.wikipedia.org/wiki/Heterocyclic_compound

    Heterocyclic organic compounds can be usefully classified based on their electronic structure. The saturated organic heterocycles behave like the acyclic derivatives. Thus, piperidine and tetrahydrofuran are conventional amines and ethers, with modified steric profiles. Therefore, the study of organic heterocyclic chemistry focuses on organic ...

  6. Alkyl group - Wikipedia

    en.wikipedia.org/wiki/Alkyl_group

    An acyclic alkyl has the general formula of −C n H 2n+1. A cycloalkyl group is derived from a cycloalkane by removal of a hydrogen atom from a ring and has the general formula −C n H 2n−1. [2] Typically an alkyl is a part of a larger molecule. In structural formulae, the symbol R is used to designate a generic (unspecified) alkyl group.

  7. Cyclic compound - Wikipedia

    en.wikipedia.org/wiki/Cyclic_compound

    the Diels–Alder, between a conjugated diene and a substituted alkene, and other cycloaddition reactions; the Nazarov cyclization reaction, originally being the cyclization of a divinyl ketone; various radical cyclizations; ring-closing metathesis reactions, which also can be used to accomplish a specific type of polymerization;

  8. Acyclic - Wikipedia

    en.wikipedia.org/wiki/Acyclic

    Acyclic may refer to: In chemistry, a compound which is an open-chain compound, e.g. alkanes and acyclic aliphatic compounds; In mathematics: A graph without a cycle, especially A directed acyclic graph; An acyclic complex is a chain complex all of whose homology groups are zero An acyclic space is a topological space all of whose homology ...

  9. Synthetic musk - Wikipedia

    en.wikipedia.org/wiki/Synthetic_musk

    Alicyclic musks are dramatically different in structure than previous musks (aromatic, polycyclic, macrocyclic) in that they are modified alkyl esters. [8] Although they were discovered prior to 1980, it was only in 1990 with the discovery and introduction of Helvetolide at Firmenich that a compound of this class was produced at a commercial ...