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Nickel(ii)-2-amino-4-alkoxy-1,3,5-triazapentadienate complexes as catalysts for Heck and Henry reactions

机译:镍(II)-2-氨基-4-烷氧基-1,3,5-三氮杂化加入复合物作为Heck和Henry反应的催化剂

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摘要

Nickel( II )-triazapentadienate complexes, [Ni(tap) _(2) ], are synthesized and found to act as catalysts in the Heck reaction of deactivated aryl halides. The use of room-temperature ionic liquids instead of organic solvents allows easy separation of the catalyst from the products and substrates. The synthesized complexes also catalyse the Henry reaction of benzaldehydes with nitroethane, at 25 °C, leading to the corresponding nitroalkanols with diastereoselectivity in favour of the anti isomer.
机译:合成镍(II) - 三氮杂化络合物,[Ni(Tap)_(2)],发现在失活芳基卤化物的静脉反应中作为催化剂。使用室温离子液体代替有机溶剂,可以容易地将催化剂与产物和基材分离。合成的配合物还催化苯甲醛与硝基甲烷的亨利反应,在25℃下,导致相应的硝基烷醇,具有反异构体的非对映选择性。

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