同音
锌
化学
乙酰化物
二聚体
催化作用
化学计量学
共轭体系
氧化态
立体化学
结晶学
药物化学
有机化学
金属
聚合物
作者
Rajata Kumar Sahoo,Sagrika Rajput,A. Ganesh Patro,Sharanappa Nembenna
出处
期刊:Dalton Transactions
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:51 (41): 16009-16016
被引量:11
摘要
A new example of a structurally characterized conjugated bis-guanidinate (CBG) supported zinc(I) dimer, i.e., LZnZnL (3) (L = {(ArNH)(ArN)-CN-C(NAr)(NHAr)}; Ar = 2,6-Et2-C6H3) with a Zn-Zn bond is reported. Moreover, homoleptic (3) and heteroleptic (Cp*ZnZnL, 2, (Cp* = 1,2,3,4,5-pentamethyl cyclopentadienide)) zinc(I) dimers are used as precatalysts in the dehydroborylation of a wide array of terminal alkynes. Furthermore, the active catalyst, CBG zinc acetylide (LZn-CC-Ph-4-Me)2, (5), is isolated which is confirmed by X-ray crystal structure analysis. A series of stoichiometric experiments have been performed to propose a plausible reaction mechanism.
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