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1131312-76-9

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1131312-76-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1131312-76-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,3,1,3,1 and 2 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1131312-76:
(9*1)+(8*1)+(7*3)+(6*1)+(5*3)+(4*1)+(3*2)+(2*7)+(1*6)=89
89 % 10 = 9
So 1131312-76-9 is a valid CAS Registry Number.

1131312-76-9Downstream Products

1131312-76-9Relevant articles and documents

Diversified Synthesis of Furans by Coupling between Enols/1,3-Dicarbonyl Compounds and Nitroolefins: Direct Access to Dioxa[5]helicenes

Ghosh, Monoranjan,Santra, Sougata,Mondal, Pallab,Kundu, Dhiman,Hajra, Alakananda

, p. 2525 - 2536 (2015)

A versatile method for the diversified synthesis of furans and arenofurans has been developed that proceeds through K2CO3-promoted cyclization between enols/1,3-dicarbonyl compounds and nitroolefins at reflux in EtOH. This facile method has been successfully employed in the synthesis of benzotrifuran derivatives, which are useful hole-transporting materials. This procedure also provides direct access to dioxa[5]helicenes. This reaction offers a broad substrate scope, uses an inexpensive base and environmentally benign solvent, and is operationally simple.

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