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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Potassium tris(3,5-dimethyl-1-pyrazolyl)borate ： ウィキペディア英語版 Potassium tris(3,5-dimethyl-1-pyrazolyl)borate Potassium tris(3,5-dimethyl-1-pyrazolyl)borate, abbreviated KTp *, is the potassium salt of the anion HB((CH3)2C3N2H)3. Tp *− is a tripodal ligand that binds to a metal in a facial manner, more specifically a Scorpionate ligand. KTp * is a white crystalline solid that is soluble in polar solvents, including water and several alcohols. ==Synthesis== KTp * is synthesized in a manner similar to that of KTp by the reaction of potassium borohydride and 3,5-dimethylpyrazole. Hydrogen gas is evolved as each of the pyrazole reacts at the boron. The rate of B-N bond formation becomes more difficult with each successive 3,5-dimethylpyrazolyl due to the increase in steric hindrance around the boron: :3 Me2C3N2H2 + KBH4 → KHB(Me2C3N2H) + 3 H2 The required dimethylpyrazole is obtained by condensation of hydrazine and acetylacetone. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Potassium tris(3,5-dimethyl-1-pyrazolyl)borate」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.