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1503-92-0

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1503-92-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1503-92-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,0 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1503-92:
(6*1)+(5*5)+(4*0)+(3*3)+(2*9)+(1*2)=60
60 % 10 = 0
So 1503-92-0 is a valid CAS Registry Number.

1503-92-0Relevant articles and documents

Practical bromination of arylhydroxylamines with SOBr2 towards ortho-bromo-anilides

Du, Yuanbo,Feng, Lei,Gao, Hongyin,Guo, Lirong,Lu, Haifeng,Xi, Zhenguo

supporting information, (2021/05/19)

A facile approach for synthesizing ortho-bromoanilides from readily available aryhydroxylamines and thionyl bromide is demonstrated in this work. Mild reaction conditions and broad scope of substrates ranging from heterocyclic structures to pharmaceutics-potential motifs are used in the reactions of this paper. Efficient bromination of ortho C–H bonds of the aryhydroxylamines has been achieved. Ortho-bromoanilide products were obtained in good to excellent yields, and model scaled-up reactions of this synthetic approach are shown in this work.

N-heterocyclic-carbene-catalyzed one-pot synthesis of hydroxamic esters

Song, Xiaoxiao,Ni, Qijian,Grossmann, Andre,Enders, Dieter

supporting information, p. 2965 - 2969 (2014/01/06)

The honey pot: The NHC-catalyzed reaction between nitrosobenzenes, aromatic/aliphatic aldehydes, and enals proceeded through an aza-benzoin-type reaction and an internal redox esterification to afford hydroxamic esters in good yields. Copyright

Facile Transfer-Reduction of Nitroarenes to N-Arylhydroksylamines with Hydrazine in the Presence of Raney Nickel

Ayyangar, N. R.,Brahme, K. C.,Kalkote, U. R.,Srinivasan, K. V.

, p. 938 - 941 (2007/10/02)

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