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233770-32-6

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233770-32-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 233770-32-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,3,7,7 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 233770-32:
(8*2)+(7*3)+(6*3)+(5*7)+(4*7)+(3*0)+(2*3)+(1*2)=126
126 % 10 = 6
So 233770-32-6 is a valid CAS Registry Number.

233770-32-6Downstream Products

233770-32-6Relevant articles and documents

Studies of palladium-catalyzed coupling reactions for preparation of hindered 3-arylpyrroles relevant to (-)-rhazinilam and its analogues

Ghosez, Leon,Franc, Cecile,Denonne, Frederic,Cuisinier, Claire,Touillaux, Roland

, p. 1827 - 1839 (2007/10/03)

Suzuki cross-coupling reactions of 3-pyrroleboronic acid derivatives with haloaromatics and the reverse process i.e., the coupling of 3-iodo(bromo)pyrroles with arylboronic acids have been investigated as a potential key step in the synthesis of (-)-rhazinilam and analogues. It was found that 3-iodo-2-formyl-1-tosylpyrroles efficiently coupled with a variety of arylboronic acids in the presence of PdCl2(dppf) as catalyst. This catalytic system is compatible with a broad spectrum of arylboronic acids - electron-rich, electron-poor, hindered, heterocyclic - which easily coupled with the pyrrole substrate.

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