Synthesis of phosphorus(V)-stabilized geminal dianions : the cases of mixed P═X/P→BH3 (X = S, O) and P═S/SiMe3 derivatives
Synthesis of phosphorus(V)-stabilized geminal dianions : the cases of mixed P═X/P→BH3 (X = S, O) and P═S/SiMe3 derivatives
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磷(V)稳定偕二价阴离子的合成：混合P=X/P→BH3 (X = S, O)和P=S/SiMe3衍生物的情况
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
N. Mézailles
中科院分区：
文献类型：
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作者：
Hadrien Heuclin;Marie Fustier;Samuel Ying;X. Goff;Sophie Carenco;Cheuk;N. Mézailles
[CH2(PPh2→BH3)(PPh2 = E)] (E = S （6)， O(7)）的单去质子化得到[CH(PPh2→BH3)(PPh2 = E)]−(E = S (6 -)， O(7 -))，其结构被x射线晶体学证实。第二次去质子化的动力学似乎对有效合成相应的碘离子至关重要。因此，6的双去质子化只得到6 2 -；与7的类似反应较慢，仅部分生成72 -。化合物[CH2(SiMe3)(PPh2 = S)](8)的双去质子化也导致了[C(SiMe3)(PPh2 = S)]2-(8 2-)的部分形成，其结构被x射线晶体学证实。由6与Mg(nBu)2反应得到了稀有的单体Mg碳化合物[MgC(PPh2→BH3)(PPh2 = S)](9)。给出了9的x射线结构。
The monodeprotonation of [CH2(PPh2→BH3)(PPh2═E)] (E = S (6), O (7)) afforded [CH(PPh2→BH3)(PPh2═E)]− (E = S (6 - ), O (7 – )), whose structures were confirmed by X-ray crystallography. The kinetics of the second deprotonation appeared to be crucial in efficient synthesis of the corresponding dianions. Thus, the double deprotonation of 6 only led to 6 2– ; the analogous reaction with 7 was slower and resulted only in the partial formation of 7 2– . Double deprotonation of the compound [CH2(SiMe3)(PPh2═S)] (8) also resulted in the partial formation of [C(SiMe3)(PPh2═S)]2- (8 2– ), whose structure was confirmed by X-ray crystallography. The rare monomeric Mg carbene compound [MgC(PPh2→BH3)(PPh2═S)] (9) was obtained by the reaction of 6 with Mg(nBu)2. The X-ray structure of 9 is presented.
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影响因子：
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作者：
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影响因子：
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作者：
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影响因子：
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