Information om | Engelska ordet BICYCLIC

Exempel på hur man kan använda BICYCLIC i en mening

• The flavylium cation is a chromenylium cation with a phenyl group substituted in position 2; and chromenylium (also called benzopyrylium) is a bicyclic version of pyrylium.
• It is a rigid bicyclic heptapeptide that is lethal after a few days when injected into the bloodstream.
• The bicyclic monoid is the syntactic monoid of the Dyck language (the language of balanced sets of parentheses).
• A pteridine is a bicyclic heterocyclic system with two nitrogen atoms at positions 1 and 4 in ring A, and two nitrogen atoms at positions 1 and 3 in ring B.
• The addition of two electrons removes the antiaromaticity; it becomes a planar 10π-electron aromatic species and is thus a bicyclic analogue of the cyclooctatetraene (COT) dianion.
• His synthesis of tropinone (a precursor for atropine & benztropine) in 1917 was not only a big step in alkaloid chemistry but also showed that tandem reactions in a one-pot synthesis are capable of forming bicyclic molecules.
• In mathematics, the bicyclic semigroup is an algebraic object important for the structure theory of semigroups.
• A bicyclic compound can be carbocyclic (all of the ring atoms are carbons), or heterocyclic (the rings' atoms consist of at least two elements), like DABCO.
• Tropinone is a bicyclic molecule, but the reactants used in its preparation are fairly simple: succinaldehyde, methylamine and acetonedicarboxylic acid (or even acetone).
• It is an aromatic heterocycle with a bicyclic structure consisting of two fused six-membered aromatic rings, a benzene ring and a pyrimidine ring.
• Isosorbide is a bicyclic chemical compound from the group of diols and the oxygen-containing heterocycles, containing two fused furan rings.
• The prostaglandins are biosynthesized by initial formation of a bicyclic peroxide ("endoperoxide") derived from arachidonic acid.
• Azulene is also a 10 π-electron system in which aromaticity is maintained by direct trans­annular bonding to form a fused 7–5 bicyclic molecule.
• Agelasimines are a group of adenine-related bicyclic diterpenoids isolated from the orange sponge Agelas mauritania.
• Related bicyclic compounds are norbornadiene, which has the same carbon skeleton but with two double bonds, and norbornane which is prepared by hydrogenation of norbornene.
• Two bicyclic sesquiterpenoids are present, polygodial (tadeonal, an unsaturated dialdehyde with a drimane backbone), and warburganal, which gives it its pungent taste.
• The tetraborate anion (tetramer) includes two tetrahedral and two trigonal boron atoms symmetrically assembled in a fused bicyclic structure.
• The rearrangement was first discovered in bicyclic terpenes for example the conversion of isoborneol to camphene:.
• A derivative of azulene, guaiazulene is a bicyclic sesquiterpene that is a constituent of some essential oils, mainly oil of guaiac and chamomile oil, which also serve as its commercial sources.
• The Wieland–Miescher ketone is a racemic bicyclic diketone (enedione) and is a versatile synthon which has so far been employed in the total synthesis of more than 50 natural products, predominantly sesquiterpenoids, diterpenes and steroids possessing possible biological properties including anticancer, antimicrobial, antiviral, antineurodegenerative and immunomodulatory activities.

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