How the reactivity of cinc carbenoids works?
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The reactivity of zinc carbenoids is influenced by various factors such as the type of carbenoid and the presence of Lewis acids. Mono zinc carbenoids react with ethylene through an asynchronous attack on one CH2 group with a higher barrier, while gem-dizinc carbenoids react synchronously on both CH2 groups with lower barriers . The addition of ZnI2 as a Lewis acid further accelerates these reactions . Zinc carbenoids, including mixed diorganozinc reagents, can be formed in a regioselective manner and have been shown to act as effective cyclopropanating reagents . These findings highlight the importance of understanding the structural and electronic properties of zinc carbenoids in controlling their reactivity and exploring their synthetic applications .
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| Papers (5) | Insight |
|---|---|
| The reactivity of platinum carbenoids varies based on the substituents. Vinyl carbenoids prefer [1,2]-H shift, while alkynyl carbenoids favor addition to π-bonds, as observed in the study. | |
40 Citations | Geminal dizinc carbenoids show higher reactivity by synchronously attacking both CH2 groups of ethylene with lower barriers compared to mono zinc carbenoids, attributed to their stronger electrophilic character. |
39 Citations | The reactivity of stabilized Li/Cl carbenoids involves B-H bond activation or carbene dimerization depending on borane adduct stability, with nucleophilic attack crucial in determining the reaction pathway. |
| The reactivity of zinc carbenoids involves regioselective formation by reacting mixed diorganozinc reagents with dihalomethane, showing effectiveness as cyclopropanating reagents in some cases. | |
| Metal carbenoids like cinc are controlled by stabilization methods to manage reactivity, enabling new synthetic applications. Recent advancements focus on stability, reactivity control, and diverse chemical applications. |
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