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4962-28-1

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4962-28-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4962-28-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,6 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4962-28:
(6*4)+(5*9)+(4*6)+(3*2)+(2*2)+(1*8)=111
111 % 10 = 1
So 4962-28-1 is a valid CAS Registry Number.

4962-28-1Relevant articles and documents

AMINATION AND HYDROXYLATION OF ARYLMETAL COMPOUNDS

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Paragraph 0098; 0226; 0252, (2018/03/25)

In one aspect, the present disclosure provides methods of preparing a primary or secondary amine and hydroxylated aromatic compounds. In some embodiments, the aromatic compound may be unsubstituted, substituted, or contain one or more heteroatoms within the rings of the aromatic compound. The methods described herein may be carried out without the need for transition metal catalysts or harsh reaction conditions.

Palladium-catalyzed hydroxylation of aryl and heteroaryl halides enabled by the use of a palladacycle precatalyst

Cheung, Chi Wai,Buchwald, Stephen L.

, p. 5351 - 5358 (2014/06/23)

A method for the hydroxylation of aryl and heteroaryl halides, promoted by a catalyst based on a biarylphosphine ligand tBuBrettPhos (L5) and its corresponding palladium precatalyst (1), is described. The reactions allow the cross-coupling of both potassium and cesium hydroxides with (hetero)aryl halides to afford a variety of phenols and hydroxylated heteroarenes in high to excellent yield.

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