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A new method for the synthesis of thiocarbamates has been developed. When dialkyl or diary! disulfides were a!!owed to react with secondary amine s and carbon monoxide in the presence of a catalytic amount of a palladium complex, the thiocarbamates were obtained in moderate to good yields. In contrast to that of secondary amines, in the reaction of a primary amine, no formation of thiocarbamate was confirmed, but urea was formed in good yield. [ABSTRACT FROM AUTHOR]

A new synthetic method of organoselenium compounds has been developed. When phenyl tributylstannyl selenide (PhSeSnBu[sub 3]) was allowed to react with acyl or aroyl chlorides in the presence of a catalytic amount of a palladium complex such as Pd(PPh[sub 3])[sub 4], Se-phenyl selenol esters were obtained in moderate to good yields. Similarly, the palladium complex catalyzed the reaction of PhSeSnBu[sub 3] with α-halo carbonyl compounds to afford the corresponding α-phenyseleno carbonyl compounds in moderate yields. [ABSTRACT FROM AUTHOR]

It was found that palladium complex catalyzed three-component coupling of phenyl tributylstannyl selenide with aryl iodides and carbon monoxide to afford the corresponding selenol esters in moderate to good yields. [Copyright &y& Elsevier]