Search results
Results from the WOW.Com Content Network
It is used as a surrogate in place of HCN, as illustrated by its use as a precursor to lithium cyanide: [8] (CH 3) 2 C(OH)CN + LiH → (CH 3) 2 CO + LiCN + H 2. In transhydrocyanation, an equivalent of HCN is transferred from acetone cyanohydrin to another acceptor, with acetone as byproduct. The transfer is an equilibrium process, initiated by ...
In the laboratory, this liquid serves as a source of HCN, which is inconveniently volatile. [4] Thus, acetone cyanohydrin can be used for the preparation of other cyanohydrins, for the transformation of HCN to Michael acceptors, and for the formylation of arenes. Treatment of this cyanohydrin with lithium hydride affords anhydrous lithium cyanide:
In transhydrocyanation, an equivalent of HCN is transferred from a cyanohydrin, e.g. acetone cyanohydrin, to another activated HCN acceptor. The transfer is an equilibrium process, initiated by base. The reaction can be driven by trapping or a superior acceptor, such as an aldehyde. [9]
Hydrogen cyanide (formerly known as prussic acid) is a chemical compound with the formula HCN and structural formula H−C≡N.It is a highly toxic and flammable liquid that boils slightly above room temperature, at 25.6 °C (78.1 °F).
Acetone (2-propanone or dimethyl ketone) is an organic compound with the formula (CH 3) 2 CO. [22] It is the simplest and smallest ketone (R−C(=O)−R').It is a colorless, highly volatile, and flammable liquid with a characteristic pungent odour, very reminiscent of the smell of pear drops.
Chemical formula. LiCN Molar mass: 32.959 g/mol Appearance White Powder Density: 1.073 g/cm ... preparation uses acetone cyanohydrin as a surrogate for HCN: [5] (CH ...
Reaction of acetone with sodium cyanide to hydroxyacetonitrile Reaction of benzoquinone with trimethylsilylcyanide, catalyst KCN is introduced as a 1:1 complex with the Crown ether 18-crown-6 Reaction mechanism
The molecular formula C 4 H 7 NO ... Acetone cyanohydrin (ACH) Methacrylamide; 2-Pyrrolidone; N-Vinylacetamide (NVA) This page was last edited on 29 November 2024 ...