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About: Bicyclobutane     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:ChemicalCompound, within Data Space : dbpedia.org associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceChemical compoundchemical compound New Facet based on Instances of this Class

Bicyclobutane is an organic compound with the formula C4H6. It is a bicyclic molecule consisting of two cis-fused cyclopropane rings, and is a colorless and easily condensed gas. Bicyclobutane is noted for being one of the most strained compounds that is isolatable on a large scale — its strain energy is estimated at 63.9 kcal mol−1. It is a nonplanar molecule, with a dihedral angle between the two cyclopropane rings of 123°. A synthetic approach to bicyclobutane derivatives involves ring closure of a suitably substituted 2-bromo-1-(chloromethyl)cyclopropane with magnesium in THF.