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N,O-coordinated bivalent nickel complex with binaphthol structure and preparation method thereof

A technology of divalent nickel and complexes, which is applied in the preparation of organic compounds, imino compounds, carboxylic acid nitriles, etc., can solve the problems of low yield and complicated method, and achieve high yield, high catalytic activity, stable The effect of physicochemical properties

Inactive Publication Date: 2017-07-21
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a kind of divalent copper complex containing naphthol structure N, O-coordination and preparation method thereof, the described N,O-coordination containing bis-naphthol structure The preparation method of the O-coordinated divalent nickel complex is to solve the technical problems of complex methods and low yields in the prior art for preparing the Schiff base as a ligand for the N,O-coordinated divalent nickel complex

Method used

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  • N,O-coordinated bivalent nickel complex with binaphthol structure and preparation method thereof
  • N,O-coordinated bivalent nickel complex with binaphthol structure and preparation method thereof
  • N,O-coordinated bivalent nickel complex with binaphthol structure and preparation method thereof

Examples

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Embodiment 1

[0024] Embodiment 1: Synthesis of Schiff base ligand L1

[0025] Dissolve 12mmol of 2-hydroxy-1-naphthaldehyde and 10mmol of aromatic amine (R=H) in 50mL of methanol, add two drops of glacial acetic acid dropwise, heat up to 60°C for 4 hours, after the reaction, cool to room temperature and put it in the refrigerator Overnight, a solid was formed, which was filtered, washed quickly with a small amount of refrigerated methanol, and dried to obtain the Schiff base ligand L1 with a yield of 92%.

[0026] Elemental Analysis: C 17 h 13 NO: C 82.57, H 5.30, N 5.66, found: C 82.68, H 5.35, N 5.47.

Embodiment 2

[0027] Example 2: Synthesis of Schiff base ligand L2

[0028] 12mmol 2-hydroxyl-1-naphthaldehyde and 10mmol aromatic amine (R=4-OCH 3 ) was dissolved in 50mL of methanol, two drops of glacial acetic acid were added dropwise, and the temperature was raised to 60°C to react for 4 hours. Schiff base ligand L2, yield 88%.

[0029] Elemental Analysis: C 18 h 15 NO 2 : C 77.96, H 5.45, N 5.05, found: C 77.79, H 5.38, N 5.23.

Embodiment 3

[0030] Example 3: Synthesis of Schiff base ligand L3

[0031] Dissolve 12mmol of 2-hydroxy-1-naphthaldehyde and 10mmol of aromatic amine (R=CN) in 50mL of methanol, add two drops of glacial acetic acid dropwise, raise the temperature to 60°C for 4 hours, after the reaction, cool to room temperature and put it in the refrigerator Overnight, a solid was formed, which was filtered, washed quickly with a small amount of refrigerated methanol, and dried to obtain the Schiff base ligand L3 with a yield of 85%.

[0032] Elemental Analysis: C 18 h 12 N 2 O: C 79.39, H 4.44, N 10.29, found: C 79.45, H 4.49, N 10.18.

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Abstract

The invention provides N,O-coordinated bivalent nickel complex with binaphthol structure, having a structural formula shown in the description; the invention also provides a preparation method of the N,O-coordinated bivalent nickel complex with binaphthol structure, comprising: subjecting 2-hydroxy-1-naphthaldehyde as a starting material and arylamine compound to high reaction to obtain N,O-ligand (Schiff base ligand), and allowing the N,O-ligand to react with nickel acetate to obtain the N,O-coordinated bivalent nickel complex with binaphthol structure. The synthetic process herein is simple and green, and has good selectivity and high yield. The nickel complex herein has stable properties, such as physiochemical properties, and has excellent activity for polymerization catalysis of norbornene.

Description

technical field [0001] The invention belongs to the field of organic chemistry, and in particular relates to an N,O-coordinated divalent copper complex containing a naphthol structure, a preparation method and an application. Background technique [0002] In 1864, the Schiff base was named after the discovery by H. Schiff. Schiff base refers to a class of compounds that contain an imine structure and are usually formed by the condensation of primary amines and active carbonyl compounds. The substituent group of Schiff base is flexible and changeable. Its basic structure contains -C=N- structure, and it has a lone pair of electrons on the sp2 hybrid orbital of N, which makes it have good coordination ability and can It coordinates well with nitrogen and oxygen atoms, and forms a series of metal coordination compounds with different properties and structures with transition metals, making it of great significance in chemistry and biology. Among them, the N, O-coordinated div...

Claims

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Application Information

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IPC IPC(8): C07C249/02C07C251/16C07C253/30C07C255/61C08F4/70C08F132/08
CPCC07C249/02C07C251/16C07C253/30C07C255/61C08F4/7008C08F132/08
Inventor 姚子健邓维李鹏
Owner SHANGHAI INST OF TECH
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