Thiono and Dithiocarboxylic Esters With Additional Functional Groups

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Abstract
Since powerful nucleophiles and reductants or electrophiles are required for the synthesis of thiono and dithio esters, severe difficulties arise if certain other functional groups are present in the precursor. Furthermore, strong interference may occur between a reactive substituent and the thio ester group once they are both present in a molecule. - It is, therefore, necessary - and possible - to choose thoroughly a selective method, if thiono or dithio esters with halogeno, nitro, or oxo substituents as well as bis-thiono and bis-dithio esters are to be prepared.