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1311284-42-0

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1311284-42-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1311284-42-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,1,2,8 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1311284-42:
(9*1)+(8*3)+(7*1)+(6*1)+(5*2)+(4*8)+(3*4)+(2*4)+(1*2)=110
110 % 10 = 0
So 1311284-42-0 is a valid CAS Registry Number.

1311284-42-0Downstream Products

1311284-42-0Relevant articles and documents

Regular acyclic and macrocyclic [AB] oligomers by formation of push-pull chromophores in the chain-growth step

Silvestri, Fabio,Jordan, Markus,Howes, Kara,Kivala, Milan,Rivera-Fuentes, Pablo,Boudon, Corinne,Gisselbrecht, Jean-Paul,Schweizer, W. Bernd,Seiler, Paul,Chiu, Melanie,Diederich, Francois

supporting information; experimental part, p. 6088 - 6097 (2011/06/24)

The substrate scope of the [2+2] cycloaddition-cycloreversion (CA-CR) reaction between electron-deficient (2,2-dicyanovinyl)benzene (DCVB) or (1,2,2-tricyanovinyl)benzene (TCVB) derivatives and N,N-dimethylanilino (DMA)-substituted acetylenes was investigated. The structural features of the cyanobutadiene products of these transformations were examined and the rates of selected CA-CR reactions were measured. Rate constants for reactions utilizing pentafluorinated TCVB and DCVB were found to be one to two orders of magnitude larger than those for the unsubstituted analogues. Multiple, consecutive CA-CR reactions were performed with substrates incorporating two reactive 2,2-cyanovinyl or 4-ethynylanilino sites. 1,4-Bis(2,2-dicyanovinyl)-2,3,5,6- tetrafluorobenzene and 1,4-bis[(4′-dihexylamino)phenylethynyl]benzene were selected as suitably reactive monomers for the synthesis of regular [AB] oligomers wherein the push-pull chromophores were formed in the chain-growth step. Oligomers of two types were isolated: macrocyclic [AB]n and open-chain B[AB]n oligomers, with n≤4.

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