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Tropolone is an organic compound with the chemical formula C 7 H 5 (OH)O. It is a pale yellow solid that is soluble in organic solvents. It is a pale yellow solid that is soluble in organic solvents. The compound has been of interest to research chemists because of its unusual electronic structure and its role as a ligand precursor.
Tropone or 2,4,6-cycloheptatrien-1-one is an organic compound with some importance in organic chemistry as a non-benzenoid aromatic. [2] The compound consists of a ring of seven carbon atoms with three conjugated alkene groups and a ketone group.
Stipitatic acid is a tropolone derivative isolated from Talaromyces stipitatus (Penicillium stipitatum). [1] References
Aromaticity is found in ions as well: the cyclopropenyl cation (2e system), the cyclopentadienyl anion (6e system), the tropylium ion (6e), and the cyclooctatetraene dianion (10e). Aromatic properties have been attributed to non-benzenoid compounds such as tropone. Aromatic properties are tested to the limit in a class of compounds called ...
The famous Hückel 4n+2 rule for determining whether ring molecules composed of C=C bonds would show aromatic properties was first stated clearly by Doering in a 1951 article on tropolone. [6] Tropolone had been recognised as an aromatic molecule by Dewar in 1945. In 1936, Hückel developed the theory of π-conjugated biradicals (non-Kekulé ...
It involved a new kind of aromatic structure with a seven-membered ring for which Dewar coined the term tropolone. [11] The discovery of the tropolone structure launched the field of non-benzenoid aromaticity , which witnessed feverish activity for several decades and greatly expanded the chemists' understanding of cyclic π-electron systems.
Thujaplicin (isopropyl cycloheptatrienolone) is any of three isomeric tropolone-related natural products that have been isolated from the softwoods of the trees of Cupressaceae family. [1] These compounds are known for their antibacterial, antifungal, and antioxidant properties. [2] [3] They were the first natural tropolones to be made ...
Hinokitiol is a tropolone derivative containing an unsaturated seven-membered carbon ring. It is a monoterpenoid – cyclohepta-2,4,6-trien-1-one substituted by a hydroxy group at position 2 and an isopropyl group at position 4. [26] [27] [28] It is a enol and a cyclic ketone.