Purine is a heterocyclic aromatic organic compound that consists of a pyrimidine ring fused to an imidazole ring. It is water-soluble. Purine also gives its name to the wider class of molecules, purines, which include substituted purines and their tautomers. They are the most widely occurring nitrogen-containing heterocycles in nature.
A cyanogen halide is a molecule consisting of cyanide and a halogen. Cyanogen halides are chemically classified as pseudohalogens.
Heinrich Hubert Maria Josef Houben was a German chemist. He made achievements within ketone synthesis, terpenes, and camphor studies. After being wounded several times on the front lines in World War I, Houben was made head of the war laboratory. He improved the Hoesch reaction which is now normally called Houben-Hoesch reaction. Houben organized and made a major rework of the book Methods of Organic Chemistry which is now referred to as Houben-Weyl Methods of Organic Chemistry.
[1.1.1]Propellane is an organic compound, the simplest member of the propellane family. It is a hydrocarbon with formula C5H6 or C2(CH2)3. The molecular structure consists of three rings of three carbon atoms each, sharing one C–C bond.
[2.2.2]Propellane, formally tricyclo[2.2.2.01,4]octane is an organic compound, a member of the propellane family. It is a hydrocarbon with formula C8H12, or C2(C2H4)3. Its molecule has three rings with four carbon atoms each, sharing one C–C bond.
Dimethylmagnesium is an organomagnesium compound. It is a white pyrophoric solid.
Thieme-Becker is a German biographical dictionary of artists.
Ullmann's Encyclopedia of Industrial Chemistry is a reference work related to industrial chemistry published in English and German. As of 2016 it is in its 7th edition.
Theodor Weyl was a German chemist and hygienist born in Berlin.
Georg Michael Hanack was a Professor emeritus of Chemistry at the University of Tübingen (Germany).
The International Symposium on Fluorine Chemistry (ISFC) is an academic conference where researchers present their most recent original results on the chemistry of fluorine and its derivatives. Communications deal with all compounds of fluorine, from hydrogen fluoride to fluoropolymers and other fluorocarbons. Participants to editions from 18th ISFC onwards have been nearly 500, most of them were from academia, researchers from fluorochemical industry being the second largest group.
The Römpp Encyclopedia Natural Products is an encyclopedia of natural products written by German chemists who specialize in this area of science. It is published by Thieme Medical Publishers.
Penicillium tardum is an anamorph species of fungus in the genus Penicillium which produces rugulosin.
Calicene or triapentafulvalene is a hydrocarbon of the fulvalene class with chemical formula C8H6, composed of linked a cyclopentadiene ring and a cyclopropene ring.
Cyclononatetraene is an organic compound with the formula C9H10. It was first prepared in 1969 by protonation of the corresponding aromatic anion (described below). It is unstable and isomerizes with a half-life of 50 min at room temperature to 3a,7a-dihydro-1H-indene via a thermal 6π disrotatory electrocyclic ring closing. Upon exposure to ultraviolet light, it undergoes a photochemical 8π electrocyclic ring closing to give bicyclo[6.1.0]nona-2,4,6-triene.
Samarium(II) bromide is a crystalline compound with the chemical formula SmBr
2. Samarium(II) bromide is a brown crystal at room temperature.
Pyridinium perbromide (also called pyridinium bromide perbromide, pyridine hydrobromide perbromide, or pyridinium tribromide) is an organic chemical composed of a pyridinium cation and a tribromide anion. It can also be considered as a complex containing pyridinium bromide—the salt of pyridine and hydrogen bromide—with an added bromine (Br2). The chemical is a solid whose reactivity is similar to that of bromine. It is thus a strong oxidizing agent used as a source of electrophilic bromine in halogenation reactions. The analogous quinoline compound behaves similarly.
Cyanogen azide, N3CN or CN4, is an azide compound of carbon and nitrogen which is an oily, colourless liquid at room temperature. It is a highly explosive chemical that is soluble in most organic solvents, and normally handled in dilute solution in this form. It was first synthesised by F.D. Marsh at DuPont in the early 1960s.
Dibenzoxepin, or dibenz[b,e]oxepin, is a tricyclic compound. It is the parent structure of certain drugs such as the tricyclic antidepressant doxepin and the analgesic fluradoline. The former is the only tricyclic antidepressant that is a dibenzoxepin.
