Anu Augustine

An efficient bromination of alkenes using cerium(IV) ammonium nitrate (CAN) and potassium bromide

Abstract Bromination of alkenes using a combination of potassium bromide and cerium(iv) ammonium nitrate (CAN) in a two phase system consisting of water and dichloromethane affords the corresponding dibromides in excellent yield. The reaction most likely involves the addition of the bromine radical generated from bromide ion by CAN and subsequent formation of the dibromide.

An efficient one-pot synthesis of vinyl sulphones via CAN mediated reaction of aryl sulphinates and alkenes

Abstract Cerium(IV) ammonium nitrate mediated reaction of sodium arene sulphinate and sodium iodide with alkenes afforded vinyl sulphones in very good yields.

Cerium(IV) Ammonium Nitrate Mediated Addition of Thiocyanate and Azide to Styrenes: Expeditious Routes to Phenacyl Thiocyanates and Phenacyl Azides

Abstract An efficient synthesis of phenacyl thiocyanates and phenacyl azides is described here. Styrenes react with ammonium thiocyanate and sodium azide in the presence of cerium(IV) ammonium nitrate under an oxygen atmosphere to afford phenacyl thiocyanates and phenacyl azides respectively in good yields.

Cerium(IV) ammonium nitrate (CAN)-mediated sulfonylation of styrenes: some interesting observations

Sulfonyl radicals generated by the oxidation of sodium arylsulfinates with cerium(IV) ammonium nitrate (CAN) undergo addition reaction with styrenes to give the sulfonylated products in good yields.

A Facile CAN‐Mediated Synthesis of Selenocyanates from Arylalkenes and Heteroarenes

Selenocyanation of styrenes and indoles mediated by cerium(IV) ammonium nitrate (CAN) afforded the corresponding selenocyanates in moderate to good yields. (© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)

Cerium(IV) ammonium nitrate mediated thiocyanation of dienes: Some interesting observations

Various 1,3-dienes when treated with a solution of cerium(IV) ammonium nitrate and ammonium thiocyanate in acetonitrile afforded the isothiocyanatothiocyanates via a [3,3] sigmatropic rearrangement. Electron rich dienes afforded the γ-thiocyanato-α,β-unsaturated carbonyl compounds under similar experimental conditions.