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Benzene, 1,1'-[(1Z)-2-(phenylseleno)-1-buten-3-yne-1,4-diyl]bis- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

195620-91-8

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195620-91-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 195620-91-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,5,6,2 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 195620-91:
(8*1)+(7*9)+(6*5)+(5*6)+(4*2)+(3*0)+(2*9)+(1*1)=158
158 % 10 = 8
So 195620-91-8 is a valid CAS Registry Number.

195620-91-8Downstream Products

195620-91-8Relevant academic research and scientific papers

Stereospecific formation of chalcogenoenynes via palladium catalysed cross-coupling reaction of α-bromovinylic chalcogenides

Braga, Antonio L.,Zeni, Gilson,De Andrade, Leandro H.,Silveira, Claudio C.,Stefani, Helio A.

, p. 39 - 41 (1998)

α-Bromovinylic chalcogenides undergo direct coupling reaction with terminal alkynes in the presence of palladium(0) in pyrrolidine at room temperature to give chalcogenoenynes in good yields.

A novel synthesis of 1,3-enynylselenides via cross coupling of (E)-α-selanylvinyl-stannanes with haloalkynes

Ma, Yun,Huang, Xian

, p. 3441 - 3447 (1997)

Conjugated enynes bearing a selanyl group were conveniently obtained under mild conditions via cross coupling of the corresponding vinyltines with 1-haloalkynes in the presence of palladium catalysts.

Stereoselective synthesis of 1,3-enynylselenides via palladium-catalysed cross coupling reactions

Cai, Ming-Zhong,Peng, Chun-Yun,Zhao, Hong,Huang, Jia-Di

, p. 376 - 377 (2007/10/03)

(E)-α-Bromovinylselenides undergo a cross coupling reaction with alkynyl Grignard reagents in the presence of tetrakis(triphenylphosphine)palladium(0) in THF at room temperature to afford 1,3-enynylselenides in good yields.

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