- disrotatory
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Describing an electrocyclic reaction in which the substituents at the interacting termini of the conjugated system rotate in opposite senses
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disrotatory
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Disrotatory — In a disrotatory mode of an electrocyclic reaction (a class of organic reactions) the substituents located at the termini of a conjugated double bond system move in the opposite (clockwise or counter clockwise) direction during ring opening or… … Wikipedia
Conrotatory and disrotatory — In a conrotatory mode of an electrocyclic reaction (a class of organic chemical reactions) the substituents located at the termini of a conjugated double bond system move in the same (clockwise or counter clockwise) direction during ring opening… … Wikipedia
Cheletropic reaction — Pericyclic Reactions Cheletropic reactions are a type of pericyclic reaction. A pericyclic reaction is one that involves a transition state with a cyclic array of atoms and an associated cyclic array of interacting orbitals. A reorganization of σ … Wikipedia
Woodward–Hoffmann rules — The Woodward–Hoffmann rules devised by Robert Burns Woodward and Roald Hoffmann are a set of rules in organic chemistry predicting the stereochemistry of pericyclic reactions based on orbital symmetry. These include electrocyclic reactions,… … Wikipedia
Electrocyclic reaction — In organic chemistry, an electrocyclic reaction is a type of pericyclic rearrangement reaction where the net result is one pi bond being converted into one sigma bond. These reactions are usually unnamed, being categorized by the following… … Wikipedia
Möbius–Hückel concept — The Möbius Hückel treatment is one of two predicting reaction allowedness versus forbiddeness. The concept is the counterpart of the Woodward Hoffmann approach. The methodology in this treatment utilizes the plus minus sign parity in proceeding… … Wikipedia
Diarylethene — In chemistry, diarylethene is the general name of a class of compounds that have aromatic groups bonded to each end of a carbon carbon double bond. The simplest example is stilbene, which has two geometric isomers, E and Z. Under the influence of … Wikipedia
Stereospecificity — In chemistry, stereospecificity is the property of a chemical reaction that yields different stereoisomeric reaction products from two stereoisomeric reactants depending on the reaction conditions. Stereospecificity differs from stereoselectivity … Wikipedia
Conrotatory — In a conrotatory mode of an electrocyclic reaction (a class of organic chemical reactions) the substituents located at the termini of a conjugated double bond system move in the same (clockwise or counter clockwise) direction during ring opening… … Wikipedia
Thiazole — Chembox new ImageFile = Thiazole numbering.png ImageFile1 = Thiazole3d.png ImageSize = 100px IUPACName = OtherNames = Section1 = Chembox Identifiers CASNo = 288 47 1 PubChem = SMILES = N1=CSC=C1 Section2 = Chembox Properties Formula = MolarMass … Wikipedia
