In chemistry, a reactive intermediate or an intermediate is a short-lived, high-energy, highly reactive molecule. When generated in a chemical reaction...

In chemistry and biology, reactive oxygen species (ROS) are highly reactive chemicals formed from diatomic oxygen (O2), water, and hydrogen peroxide....

term. But this shorter form has other uses. It often refers to reactive intermediates. It is also used more widely for chemicals such as cumene which...

intermediate is a reaction product that serves as a precursor for other reactions A reactive intermediate is a highly reactive reaction intermediate,...

In chemistry the reactivity–selectivity principle or RSP states that a more reactive chemical compound or reactive intermediate is less selective in chemical...

contributing structures of an individual 3c-2e bond in diborane. Often, reactive intermediates such as carbocations and free radicals have more delocalized structure...

aminylium ion or imidonium ion (obsolete)) in organic chemistry is a reactive intermediate based on nitrogen with both an electron lone pair and a positive...

Dichlorocarbene is the reactive intermediate with chemical formula CCl2. Although this chemical species has not been isolated, it is a common intermediate in organic...

withdrawing groups and a nucleophile. These complexes are found as reactive intermediates in nucleophilic aromatic substitution but stable and isolated Meisenheimer...

formula of the parent ion is C 2H+ 3. Vinyl cation are invoked as reactive intermediates in solvolysis of vinyl halides, as well as electrophilic addition...

An aryl radical in organic chemistry is a reactive intermediate and an arene compound incorporating one free radical carbon atom as part of the ring structure...

intermediates (see next section) or other quantitative and qualitative characteristics of the reaction. It also describes each reactive intermediate,...

A 1,2-rearrangement is often initialised by the formation of a reactive intermediate such as: a carbocation by heterolysis in a nucleophilic rearrangement...

or nucleophilic depending upon the reagent involved, whether a reactive intermediate involved in the reaction is a carbocation, a carbanion or a free...

thiophene-S-oxide intermediate as was previously hypothesized. It was determined to be derived from a thiophene epoxide intermediate and this reactive intermediate is...

bond and lead(II) acetate. Organolead compounds form a variety of reactive intermediates such as lead free radicals: Me3PbCl + Na (77 K) → Me3Pb. and plumbylenes...

carbenoid is a reactive intermediate that shares reaction characteristics with a carbene. In the Simmons–Smith reaction the carbenoid intermediate is a zinc...

considered an electrophile due to the unsatisfied octet. A nitrene is a reactive intermediate and is involved in many chemical reactions. The simplest nitrene...

A tetrahedral intermediate is a reaction intermediate in which the bond arrangement around an initially double-bonded carbon atom has been transformed...

(sometimes just referred to as propagation) is a process in which a reactive intermediate is continuously regenerated during the course of a chemical chain...

Radical cations are denoted M + ∙ {\displaystyle M^{+\bullet }} . Salts of these species have been isolated in the cases of dibenzocyclooctatetraene, various...

presented in 1968. Due to their extreme reactivity, arynes must be generated in situ. Typical of other reactive intermediates, benzyne must be trapped, otherwise...

appears as a reactive intermediate in electrophilic aromatic substitution. For historic reasons this complex is also called a Wheland intermediate, after American...

Mansuy D., Dansette P. M.; Dansette (2011). "Sulfenic acids as reactive intermediates in xenobiotic metabolism". Archives of Biochemistry and Biophysics...

A reductone is a special class of organic compounds. They are enediols with a carbonyl group adjacent to the enediol group, i.e. RC(OH)=C(OH)-C(O)R. The...

and diiodine), and proton donors. A carbanion is one of several reactive intermediates in organic chemistry. In organic synthesis, organolithium reagents...

analogous thiol-yne reaction) have extensively been used in generating reactive intermediates for the cyclization of unsaturated substrates. Radical hydrothiolation...

different classes undergo different reactions. Most carbenes are extremely reactive and short-lived. A small number (the dihalocarbenes, carbon monoxide, and...

been studied extensively in organic chemistry. Fluorenylidene is a reactive intermediate. Reactions involving fluorenylidene proceed through either the triplet...

rate-determining) NO3 + CO → NO2 + CO2 (fast step) In this mechanism the reactive intermediate species NO3 is formed in the first step with rate r1 and reacts...