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・ Thion, Burkina Faso
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・ Thionyl
Thionyl bromide
・ Thionyl chloride
・ Thionyl fluoride
・ Thionyl tetrafluoride
・ Thioperamide
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・ Thiophenol
・ Thiophosgene
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Thionyl bromide : ウィキペディア英語版
Thionyl bromide

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Thionyl bromide is the chemical compound SOBr2. It is less stable and less widely used than its chloride analogue, thionyl chloride. It is prepared by the action of hydrogen bromide on thionyl chloride, a characteristic reaction where a stronger acid is converted to a weaker acid:
:SOCl2 + 2HBr → SOBr2 + 2HCl
Thionyl bromide is used for some brominations of certain α,β-unsaturated carbonyls, and it also converts alcohols to alkyl bromides. Otherwise it hydrolyzes readily to release sulfur dioxide:
:SOBr2 + H2O → SO2 + 2HBr
==Safety==
SOBr2 hydrolyzes readily to release dangerous HBr and acts as a lachrymator.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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