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955043-77-3

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955043-77-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 955043-77-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,5,0,4 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 955043-77:
(8*9)+(7*5)+(6*5)+(5*0)+(4*4)+(3*3)+(2*7)+(1*7)=183
183 % 10 = 3
So 955043-77-3 is a valid CAS Registry Number.

955043-77-3Downstream Products

955043-77-3Relevant articles and documents

Copper-catalysed intramolecular O-arylation of aryl chlorides and bromides: a straightforward approach to benzo[d]oxazoles in water

Barbero, Nekane,Carril, Mónica,SanMartin, Raul,Domínguez, Esther

, p. 10425 - 10432 (2008/02/12)

A general, efficient and more sustainable protocol for the copper-catalysed intramolecular O-arylation of o′-haloanilides leading to the benzo[d]oxazole core is reported. Remarkably, the optimised conditions allowed for the use of inexpensive and easily available aryl chlorides as arylating agents. Moreover, all reactions were carried out employing exclusively water as the solvent, rendering the methodology presented herein highly valuable from both environmental and economic points of view.

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