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Updated: Jul 6, 2025

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三角Pd金属循环和催化在水中苏子合反应中的连接异构体

Kamal R Chaudhari1, Amey P Wadawale1, Arup Kumar Pathak1,2

  • 1Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India.

Inorganic chemistry
|January 3, 2024
PubMed
概括

新的水溶性金属循环被合成使用化-硫酸盐连接体. 这些新型复合物在水性苏苏基交叉合反应中表现出高的催化活性,证明了绿色化学应用的潜力.

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The radical dimerization of ketones or aldehydes gives vicinal diols through a pinacol coupling reaction. However, the behavior of titanium metals used for the reaction as a source of electrons is unusual. When the reaction is carried out in the presence of titanium, diols can be isolated at low temperatures. Else titanium further reacts with diols, forming alkenes through the McMurry reaction.
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The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.
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Cycloadditions are one of the most valuable and effective synthesis routes to form cyclic compounds. These are concerted pericyclic reactions between two unsaturated compounds resulting in a cyclic product with two new σ bonds formed at the expense of π bonds. The [4 + 2] cycloaddition, known as the Diels–Alder reaction, is the most common. The other example is a [2 + 2] cycloaddition.
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Diels–Alder reactions between cyclic dienes locked in an s-cis configuration and dienophiles yield bridged bicyclic products.
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