The alkyl telluride is then subjected to halogenation to form the alkyl halide. This can be achieved by treating the alkyl telluride with a halogen source such as N-bromosuccinimide (NBS) or N-iodosuccinimide (NIS). R2TeR’+X2→RX+R’TeX\text{R}_2\text{TeR'} + \text{X}_2 \rightarrow \text{RX} + \text{R'}\text{TeX}R2?TeR’+X2?→RX+R’TeX Here, X represents the halogen atom (e.g., Cl, Br, I).
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Tetradecane, 2-iodo-
methyl N-(2-bromo-5-chlorophenyl)carbamate
