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1645293-15-7

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1645293-15-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1645293-15-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,5,2,9 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1645293-15:
(9*1)+(8*6)+(7*4)+(6*5)+(5*2)+(4*9)+(3*3)+(2*1)+(1*5)=177
177 % 10 = 7
So 1645293-15-7 is a valid CAS Registry Number.

1645293-15-7Downstream Products

1645293-15-7Relevant academic research and scientific papers

Two-photon absorption properties of multipolar triarylamino/tosylamido 1,1,4,4-tetracyanobutadienes

Betou, Marie,Cordier, Marie,Dudek, Marta,Halet, Jean-Fran?ois,Humphrey, Mark G.,Matczyszyn, Katarzyna,Mongin, Olivier,Moxey, Graeme J.,Paul, Frédéric,Philippe, Clotilde,Pokladek, Ziemowit,Ripoche, Nicolas,Roisnel, Thierry,Sahnoune, Hiba,Samoc, Marek,Toupet, Loic,Trolez, Yann

, p. 22283 - 22297 (2021/10/21)

The synthesis and characterization of four new tetracyanobutadiene (TCBD) derivatives (1,3cand4b-c) incorporating tosylamido and 4-triphenylamino moieties are reported. Along with those of five closely related or differently branched TCBDs derivatives (2,

High-yield formation of substituted tetracyanobutadienes from reaction of ynamides with tetracyanoethylene

Betou, Marie,Kerisit, Nicolas,Meledje, Esme,Leroux, Yann R.,Katan, Claudine,Halet, Jean-Francois,Guillemin, Jean-Claude,Trolez, Yann

supporting information, p. 9553 - 9557 (2014/08/18)

A high-yielding sequence of [2+2] cycloaddition-retroelectrocyclization of ynamides with tetracyanoethylene (TCNE) is described. The reaction provided tetracyanobutadiene (TCBD) species, which were characterized by various techniques. DFT and TD-DFT calculations were also performed to complement experimental findings. 2+2=Tetracyanobutadienes: The reaction between ynamides and tetracyanoethylene at room temperature in dichloromethane provides tetracyanobutadienes in good to quantitative yields, following a sequence of [2+2] cycloaddition-retroelectrocyclization (see scheme; EWG=electron- withdrawing group).

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