Alkyne: In organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbon—carbon triple bond between two carbon atoms.Alkyne.Stilbene photocyclization: Stilbene photocyclization is the coupling of two aromatic carbons in stilbenes upon ultraviolet irradiation. The reaction can be used to form polycyclic aromatic hydrocarbons and heteroaromatics.Rhodium(III) chlorideCopper-free click chemistry: Copper-free click chemistry is a bioorthogonal reaction first developed by Carolyn Bertozzi as an activated variant of an azide alkyne Huisgen cycloaddition, based on the work by Fokin and Sharpless et al. Unlike the CuAAC, Cu-free click chemistry has been modified to be bioorthogonal by eliminating a cytotoxic copper catalyst, allowing reaction to proceed quickly and without live cell toxicity.Hexene: Hexene is an alkene with a molecular formula C6H12. The prefix "hex" is derived from the fact that there are 6 carbon atoms in the molecule, while the "-ene" suffix denotes that there is an alkene present—two carbon atoms are connected via a double bond.Sharpless asymmetric dihydroxylation: Sharpless asymmetric dihydroxylation (also called the Sharpless bishydroxylation) is the chemical reaction of an alkene with osmium tetroxide in the presence of a chiral quinine ligand to form a vicinal diol.Acid catalysis: In acid catalysis and base catalysis a chemical reaction is catalyzed by an acid or a base. The acid is the proton donor and the base is the proton acceptor.Hexafluoro-2-propanolAzide: Azide is the anion with the formula N3Palladium(II) chlorideAlkyl cycloalkaneHydroacylation: Hydroacylation is a type of organic reaction in which an aldehyde is added over an alkene or alkyne bond. The reaction product is a ketone.Organoruthenium chemistry: Organoruthenium chemistry is the chemistry of organometallic compounds containing a carbon to ruthenium chemical bond.Synthesis of Organometallic Compounds: A Practical Guide Sanshiro Komiya Ed.TetrazineHydroamination: Hydroamination is the addition of an N-H bond of an amine across a carbon-carbon multiple bond of an alkene, alkyne, diene, or allene. In the ideal case, hydroamination is atom economical and green.Nitrenium ion: A nitrenium ion (also called: aminylium ion) in organic chemistry is a reactive intermediate based on nitrogen with both an electron lone pair and a positive charge and with two substituents (R2N+).Reactive Intermediate Chemistry, Moss, Platz, & Jones (eds.IndolizidineDivinylbenzeneMetallocene: A metallocene is a compound typically consisting of two cyclopentadienyl anions (Cp, which is C5H5−) bound to a metal center (M) in the oxidation state II, with the resulting general formula (C5H5)2M. Closely related to the metallocenes are the metallocene derivatives, e.Electrophilic substitution of unsaturated silanes: Electrophilic substitution of unsaturated silanes involves attack of an electrophile on an allyl- or vinylsilane. An allyl or vinyl group is incorporated at the electrophilic center after loss of the silyl group.Organogold chemistry: Organogold chemistry is the study of compounds containing carbon-gold bonds. They are studied in academic research, but have not received widespread use otherwise.Hydrogen silsesquioxane: [T8 Cube.png|200px|thumbnail|right| Hydrogen silsesquioxane (R = H).HexamethylphosphoramideMethylene diphenyl diisocyanateFalcarindiolNoncovalent solid-phase organic synthesis: Noncovalent solid-phase organic synthesis or NC-SPOS is a form of Solid-phase synthesis whereby the organic substrate is bonded to the solid phase not by a covalent bond but by other chemical interactions. This bond may consist of an induced dipole interaction between a hydrophobic matrix and a hydrophobic anchor.DiketoneHeterocyclic amine: Heterocyclic amines, also sometime referred to as HCAs, are chemical compounds containing at least one heterocyclic ring, which by definition has atoms of at least two different elements, as well as at least one amine (nitrogen-containing) group. Typically it is a nitrogen atom of an amine group that also makes the ring heterocyclic (e.Copper toxicity