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56506-62-8

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56506-62-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56506-62-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,5,0 and 6 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56506-62:
(7*5)+(6*6)+(5*5)+(4*0)+(3*6)+(2*6)+(1*2)=128
128 % 10 = 8
So 56506-62-8 is a valid CAS Registry Number.

56506-62-8Relevant articles and documents

Ligand compound for copper catalyzed aryl halide coupling reaction, catalytic system and coupling reaction

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Paragraph 0160-0165, (2021/05/29)

The invention provides a ligand compound capable of being used for copper catalyzed aryl halide coupling reaction, the ligand compound is a three-class compound containing a 2-(substituted or non-substituted) aminopyridine nitrogen-oxygen group, and the invention also provides a catalytic system for the aryl halide coupling reaction. Thecatalytic system comprises a copper catalyst, a compound containing a 2-(substituted or non-substituted) aminopyridine nitrogen-oxygen group adopted as a ligand, alkali and a solvent, and meanwhile, the invention also provides a system for the aryl halide coupling reaction adopting the catalyst system. The compound containing the 2-(substituted or non-substituted) aminopyridine nitrogen oxygen group can be used as the ligand for the copper catalyzed aryl chloride coupling reaction, and the ligand is stable under a strong alkaline condition and can well maintain catalytic activity when being used for the copper-catalyzed aryl chloride coupling reaction. In addition, the copper catalyst adopting the compound as the ligand can particularly effectively promote coupling of copper catalyzed aryl chloride and various nucleophilic reagents which are difficult to generate under conventional conditions, C-N, C-O and C-S bonds are generated, and numerous useful small molecule compounds are synthesized. Therefore, the aryl halide coupling reaction has a very good large-scale application prospect by adopting the copper catalysis system of the ligand.

Mechanistic Analysis of Metallaphotoredox C-N Coupling: Photocatalysis Initiates and Perpetuates Ni(I)/Ni(III) Coupling Activity

Till, Nicholas A.,Tian, Lei,Dong, Zhe,Scholes, Gregory D.,MacMillan, David W. C.

, p. 15830 - 15841 (2020/10/18)

The combined use of reaction kinetic analysis, ultrafast spectroscopy, and stoichiometric organometallic studies has enabled the elucidation of the mechanistic underpinnings to a photocatalytic C-N cross-coupling reaction. Steady-state and ultrafast spect

A 1,10-phenanthrene rowling-N-Monoxide derivatives ligand and its application

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Paragraph 0106-0117, (2016/11/21)

The invention relates to a 1,10-Phenanthroline monohydrate-dual N-monoxide derivative ligand. The derivative ligand has a structural formula as follows: FORMULA, wherein R1 and R8 are selected from hydrogen, halogen, hydroxyl, C1-C7 alkoxyl, straight-chain saturated or unsaturated C1-C6 alkyl, or branched-chain saturated or unsaturated C1-C6 alkyl; R2 to R7 are selected from hydrogen, halogen, hydroxyl, C1-C8 alkoxyl, straight-chain saturated or unsaturated C1-C6 alkyl, or branched-chain saturated or unsaturated C1-C6 alkyl, C3-C7 ring hydroxyl, benzyl, aryl or 5-7 membered heterocyclic ring. Hetero atoms (such as O or N) are contained in the ligand disclosed by the invention, and a transitional six-membered ring is formed through coordination with copper ions, so that aryl iodide, aryl bromide or aryl chloride is promoted to carry out a C-N coupling reaction with aliphatic amine or secondary aliphatic cyclammonium or aliphatic acid or nitrogen-containing heterocyclic compounds at room temperature.

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