Covalent Capture of Nitrous Oxide by N-Heterocyclic Carbenes

Persistent carbene

A persistent carbene (also known as stable carbene) is a type of carbene demonstrating particular stability. The best-known examples and by far largest subgroup are the N-heterocyclic carbenes (NHC) (sometimes called Arduengo carbenes), for example diaminocarbenes with the general formula (R2N)2C:, where the four R moieties are typically alkyl and aryl groups. The groups can be linked to give heterocyclic carbenes, such as those derived from imidazole, imidazoline, thiazole or triazole.

Transition metal carbene complex

A transition metal carbene complex is an organometallic compound featuring a divalent organic ligand. The divalent organic ligand coordinated to the metal center is called a carbene. Carbene complexes for almost all transition metals have been reported. Many methods for synthesizing them and reactions utilizing them have been reported. The term carbene ligand is a formalism since many are not derived from carbenes and almost none exhibit the reactivity characteristic of carbenes.

Alkylation

Alkylation is a chemical reaction that entails transfer of an alkyl group. The alkyl group may be transferred as an alkyl carbocation, a free radical, a carbanion, or a carbene (or their equivalents). Alkylating agents are reagents for effecting alkylation. Alkyl groups can also be removed in a process known as dealkylation. Alkylating agents are often classified according to their nucleophilic or electrophilic character. In oil refining contexts, alkylation refers to a particular alkylation of isobutane with olefins.

Covalent Capture of Nitrous Oxide by N-Heterocyclic Carbenes

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Isolation, Characterisation and Reactivity of N-Heterocyclic Diazoolefins

Synthetic chemistry with nitrous oxide and triazenes

SET processes in Lewis acid–base reactions: the tritylation of N-heterocyclic carbenes

Synthetic chemistry with nitrous oxide and triazenes

Isolation, Characterisation and Reactivity of N-Heterocyclic Diazoolefins

SET processes in Lewis acid–base reactions: the tritylation of N-heterocyclic carbenes