Nitrosation and nitrosylation

Process of converting organic compounds into nitroso derivatives

Nitrosation and nitrosylation are two names for the process of converting organic compounds or metal complexes into nitroso derivatives, i.e., compounds containing the R−NO functionality. The synonymy arises because the R-NO functionality can be interpreted two different ways, depending on the physico-chemical environment:Nitrosylation interprets the process as adding a nitrosyl radical NO•. It commonly occurs to a metal or a thiol, leading to nitrosyl iron Fe−NO or S-nitrosothiols (RSNOs). Nitrosation interprets it as adding a nitrosonium ion NO+. It commonly occurs with amines, leading to a nitrosamine.

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