STEREOSELECTIVE ORGANOMETALLIC ALKYLATION REACTIONS .3. ATE COMPLEX ADDITION TO CYCLIC AND BICYCLIC KETONES
STEREOSELECTIVE ORGANOMETALLIC ALKYLATION REACTIONS .3. ATE COMPLEX ADDITION TO CYCLIC AND BICYCLIC KETONES
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DOI：
10.1021/jo00936a019
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发表时间：
1974-01-01
影响因子：
3.6
通讯作者：
LAEMMLE, J
中科院分区：
文献类型：
--
作者：
ASHBY, EC;CHAO, LC;LAEMMLE, J
(1)配合物的形成和配合物的稳定性在很大程度上取决于所涉及的特定金属，而在较小程度上取决于配体的大小和电荷。例如，加成物LiM (C6H5) 3解离成苯基锂和M (C6H5) 2的趋势依次为LiBe (C6H6) 3< LiZn (C6H6) 3< LiMg (C6H5) 3< LiCd (C6Hs) 3< LiHg (CeH5) 3。一般来说，中心金属原子越小，I族金属的正电性越强，加合物就越稳定。的确，在上述系列中，最大的金属汞没有表现出形成加合物的倾向。
(1) ate complex formation and the stability of the complex de-pend to a large degree on the particular metals involved and to a lesser degree on the ligand size and charge. For ex-ample, the tendency of the adducts LiM (C6H5) 3to disso-ciate intophenyllithium and M (C6H5) 2 increases in the order LiBe (C6H6) 3< LiZn (C6H6) 3< LiMg (C6H5) 3< LiCd (C6Hs) 3< LiHg (CeH5) 3. In general, the smaller the central metal atom and the more electropositive the group I metal the more stable is the adduct. Indeed, in the above series the largest metal, mercury, shows no tendency to form an adduct.