| 摘要 |
A halogenating agent of the formula (1) and a method of halogenating hydroxyl groupwherein R1 and R2 are the same or different and are each ethyl, propyl, isopropyl, butyl, isobutyl or allyl; X is chlorine atom or bromine atom; and Y is chlorine ion, bromine ion, dichlorophosphate ion, dibromophosphate ion, chlorosulfonate ion, bromosulfonate ion, chlorooxalate ion or bromooxalate ion.
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