Syntheses, Structures, and Reactivities of 2,3-Pyrazyl-Linked Bis(1-aza-allyl) Alkali-Metal Complexes
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https://figshare.com/articles/dataset/Syntheses_Structures_and_Reactivities_of_2_3_Pyrazyl_Linked_Bis_1_aza_allyl_Alkali_Metal_Complexes/3346687
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The dilithium compound [Li2{{N(SiMe3)C(But)C(H)}2C4H2N2-2,3}(THF)2]2 (2) has been
obtained by dilithiation of 2,3-bis(trimethylsilylmethyl)pyrazine, (CH2SiMe3)2C4H2N2-2,3 (1),
using BunLi followed by the reaction with ButCN. Compounds of the heavier congeners
[Na2{{N(SiMe3)C(But)C(H)}2C4H2N2-2,3}(THF)2]2 (3) and [K2{{N(SiMe3)C(But)C(H)}2C4H2N2-2,3}(THF)3]2 (4) have been obtained by treating 2 with ButONa or ButOK, respectively.
Treatment of 2 with 4 equiv of MgBr2(Et2O) yielded the binuclear magnesium complex [Mg2{{N(SiMe3)C(But)C(H)}2C4H2N2-2,3}Br2(THF)4] (5). Similar metathesis reaction of 2 with 4
equiv of ZnCl2 gave the zwitterionic lithium zincate complex [Zn2{{N(SiMe3)C(But)C(H)}2C4H2N2-2,3}Cl2(μ-Cl)2Li2(THF)6] (6). However, the reaction of 2 with 4 equiv of CdCl2
afforded a heterocyclic compound, (7). X-ray structures
of compounds 2−7 have been determined.
创建时间：
2016-05-07
