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1042149-09-6

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1042149-09-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1042149-09-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,2,1,4 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1042149-09:
(9*1)+(8*0)+(7*4)+(6*2)+(5*1)+(4*4)+(3*9)+(2*0)+(1*9)=106
106 % 10 = 6
So 1042149-09-6 is a valid CAS Registry Number.

1042149-09-6Downstream Products

1042149-09-6Relevant 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 (2015/10/29)

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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