Cyclopropane is the smallest alicyclic compound.

An alicyclic compound is an organic compound that is both aliphatic and cyclic. They contain one or more all-carbon rings which may be either saturated or unsaturated, but do not have aromatic character. Alicyclic compounds may or may not have aliphatic side chains attached. Image File history File links Download high-resolution version (2000x1789, 33 KB) Description: DE: Cyclopropan EN: cyclopropane Source/Drawer: Self made, 07:27, 2 August 2005 (UTC) License: GNU FDL Comments: picture has a resolution ≥ 2000 pixel so it can be used for printable medias --Rhododendronbusch 07:27, 2 August... Image File history File links Download high-resolution version (2000x1789, 33 KB) Description: DE: Cyclopropan EN: cyclopropane Source/Drawer: Self made, 07:27, 2 August 2005 (UTC) License: GNU FDL Comments: picture has a resolution ≥ 2000 pixel so it can be used for printable medias --Rhododendronbusch 07:27, 2 August... Molecule structure formula of cyclopropane Cyclopropane is a cycloalkane molecule with the molecular formula C3H6 consisting of three carbon atoms linked to each other to form a ring, with each carbon atom bearing two hydrogen atoms. ... Benzene An organic compound is any member of a large class of chemical compounds whose molecules contain carbon, with the exception of carbides, carbonates, carbon oxides and elementary carbon. ... In chemistry, non-aromatic and non-cyclic (acyclic) organic compounds are called aliphatic. ... In chemistry, saturation has four different meanings: In physical chemistry, saturation is the point at which a solution of a substance can dissolve no more of that substance and additional amounts of that substance will appear as a precipitate. ... Aromaticity is a chemical property in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibit a stabilization stronger than would be expected by the stabilization of conjugation alone. ...

Simple alicyclic compounds are the cycloalkanes cyclopropane, cyclobutane and cyclohexane. A polycyclic cycloalkane is Decalin. Bicyclic alkanes are norbornene and norbornadiene. Spiro compounds have bicyclic connected through one carbon atom. cyclobutane Cycloalkanes are chemical compounds with a one or more rings of carbons to which hydrogens are attached according to the formula CnH2n. ... Molecule structure formula of cyclopropane Cyclopropane is a cycloalkane molecule with the molecular formula C3H6 consisting of three carbon atoms linked to each other to form a ring, with each carbon atom bearing two hydrogen atoms. ... Cyclobutane, C4H8, with a molecular mass of 56. ... Cyclohexane is a cycloalkane with the molecular formula C6H12. ... Decahydronaphthalene (also Decalin) is an industrial solvent. ... The structure of a bicyclic molecule contains two usually fused rings. ... Norbornene or norbornylene or norcamphene is a bridged cyclic hydrocarbon. ... Norbornadiene is an bicyclic hydrocarbon. ... A spiro compound is a bicyclic organic compound with rings connected through just one atom. ...

The mode of ring-closing in the formation of many alicyclic compounds can be predicted by Baldwin's rules. Baldwins Rules are a series of rules outlining the relative favourabilities of ring closure reactions in alicyclic compounds. ...

An exocyclic group is always placed outside the ring structure, take for instance the exocyclic double bond on the left:

Image File history File links Exocyclic. ...

See for an example isotoluene. The Isotoluenes in organic chemistry are the non-aromatic toluene isomers with an exocyclic double bond. ...

Cycloalkenes

Cyclohexene is an alicyclic compound with a double bond.

Moncyclic Cycloalkenes are cyclobutene, cyclopropene and cyclohexene. Image File history File links Cyclohexene. ... Image File history File links Cyclohexene. ... Cyclohexene is a colorless clear liquid cycloalkene with an intense aversive characteristic sharp smell reminiscent of an oil refinery. ... A cycloalkene or cycloolefin is a type of alkene hydrocarbon which contains a closed ring of carbon atoms. ... Cyclobutene is a cycloalkene with chemical formula C4H6 and CAS number 822-35-5. ... Cyclopropene is the simplest cycloalkene. ... Cyclohexene is a colorless clear liquid cycloalkene with an intense aversive characteristic sharp smell reminiscent of an oil refinery. ...

The placement of double bonds in many alicyclic compounds can be predicted with Bredt's Rule. Bredts rule is an empirical observation in organic chemistry that states that a double bond cannot be placed at the bridgehead of a bridged ring system, unless the rings are large enough. ...