Cyclooctadecanonaene or [18]annulene is an organic compound with chemical formula C 18H 18. It belongs to the class of highly conjugated compounds known...

aromatic hydrocarbons are benzenoid. Notable counterexamples are cyclooctadecanonaene, azulene and trans-bicalicene. Quinoid Aromatic compound Tomlinson...

and [14]annulene are weakly aromatic compounds and [18]annulene, Cyclooctadecanonaene, is aromatic, though strain within the structure causes a slight...

Cyclododecahexaene ([12]annulene) Cyclotetradecaheptaene ([14]annulene) Cyclooctadecanonaene ([18]annulene) Cyclodocosahendecaene ([22]-annulene) Wikimedia Commons...

copper(I)-alkyne complexes. This methodology was used in the synthesis of cyclooctadecanonaene. Another example is the synthesis of diphenylbutadiyne from phenylacetylene...

graphene lattice which can then be transferred onto another substrate. Cyclooctadecanonaene, the compound consisting of just the outer ring without the benzene...

fields are in opposite direction. This effect can be observed in cyclooctadecanonaene ([18]annulene) with 6 inner protons at −3 ppm. The situation is reversed...

(molar mass: 234.33 g/mol, exact mass: 234.1409 u) may refer to: Cyclooctadecanonaene, or [18]annulene Retene This set index page lists chemical structure...

alkynes in the Glaser coupling (for example in the synthesis of cyclooctadecanonaene) or to aryl halides in the Castro-Stephens Coupling. Reductive coupling...