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7287-75-4

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7287-75-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7287-75-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,8 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 7287-75:
(6*7)+(5*2)+(4*8)+(3*7)+(2*7)+(1*5)=124
124 % 10 = 4
So 7287-75-4 is a valid CAS Registry Number.

7287-75-4Relevant articles and documents

A green and mild procedure to selective synthesis of diarylamine via domino reaction of aryl halides and arginine catalyzed by magnetic-MOF

Soleiman-Beigi, Mohammad,Mohammadi, Fariba

, (2019/01/03)

Efficient and selective direct synthesis of diarylamines from aryl halides and arginine as a nitrogen-donor reagent is reported. Arginine, which is an oral supplement, acts as a useful nitrogen source donor in the copper-catalyzed reaction. Fe3O4/Cu3(BTC)2, which was easily separated and recycled with a magnet, improved the rate and facilitation of the synthesis of diarylamines selectively. The introduction of a new and available N-source, simple magnetic separation process, normal atmospheric conditions, and excellent yields under mild reaction conditions are other important features of this work.

Formal arylation of NH3 to produce diphenylamines over supported Pd catalysts

Koizumi, Yu,Taniguchi, Kento,Jin, Xiongjie,Yamaguchi, Kazuya,Nozaki, Kyoko,Mizuno, Noritaka

supporting information, p. 10827 - 10830 (2017/10/09)

In the presence of supported Pd nanoparticle catalysts, e.g., Pd/Al2O3, various diphenylamines could be synthesized through acceptorless formal arylation using NH3 or its surrogates, e.g., urea, as nitrogen sources and cyclohexanones as arylation sources. The observed catalysis was truly heterogeneous, and the catalyst was reusable with retention of its high catalytic performance.

Selective Cross-Coupling of (Hetero)aryl Halides with Ammonia to Produce Primary Arylamines using Pd-NHC Complexes

Lombardi, Christopher,Day, Jonathan,Chandrasoma, Nalin,Mitchell, David,Rodriguez, Michael J.,Farmer, Jennifer L.,Organ, Michael G.

supporting information, p. 251 - 254 (2017/04/26)

Herein we report the first example of (hetero)arylation of ammonia using a monoligated palladium-NHC complex. The new, rationally designed, precatalyst (DiMeIHeptCl)Pd(allyl)Cl featuring highly branched alkyl chains has been shown to be effective in selective aminations across a range of challenging substrates, including nitrogen-containing heterocycles and those featuring base-sensitive functionality. The less bulky Pd-PEPPSI-IPentCl precatalyst performs well for ortho-substituted aryl halides, giving monoarylated products in high yield with good selectivity.

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