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Pyridine, 3,3'-(1,3-butadiyne-1,4-diyl)bis-, also known as 4,4'-(1,3-butadiyne-1,4-diyl)bis(pyridine) or 1,4-bis(pyridin-3-yl)buta-1,3-diyne, is an organic compound with the chemical formula C13H10N2. It is a conjugated diene with a butadiyne backbone and two pyridine rings attached at the terminal carbon atoms. Pyridine, 3,3'-(1,3-butadiyne-1,4-diyl)bis- is a colorless solid and is soluble in organic solvents. It is used as a building block in the synthesis of various organic compounds, particularly in the preparation of conjugated polymers and other materials with potential applications in electronics and materials science. Due to its reactivity, it is important to handle Pyridine, 3,3'-(1,3-butadiyne-1,4-diyl)bis- with care, following proper safety protocols.

5069-24-9

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5069-24-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5069-24-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,6 and 9 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 5069-24:
(6*5)+(5*0)+(4*6)+(3*9)+(2*2)+(1*4)=89
89 % 10 = 9
So 5069-24-9 is a valid CAS Registry Number.

5069-24-9Downstream Products

5069-24-9Relevant academic research and scientific papers

A mild CuI-catalyzed Glaser-type homo-coupling reaction using α,α-dibromo-β-dicarbonyl compounds as oxidants

Fan, Xiaohui,Li, Na,Shen, Tong,Cui, Xiao-Meng,Lv, Hao,Zhu, Hong-Bo,Guan, Yong-Hong

, p. 256 - 261 (2014)

Exploration of α,α-dibromo-β-dicarbonyl compounds as novel organic oxidants for the mild Cu(I)-catalyzed Glaser-type homo-coupling reaction has been achieved, which provides an alternatively efficient pathway for the construction of 1,3-conjugated structures. In addition, the mechanism of this reaction was investigated.

Copper Catalysis for Selective Heterocoupling of Terminal Alkynes

Su, Lebin,Dong, Jianyu,Liu, Long,Sun, Mengli,Qiu, Renhua,Zhou, Yongbo,Yin, Shuang-Feng

supporting information, p. 12348 - 12351 (2016/10/07)

A Cu-catalyzed selective aerobic heterocoupling of terminal alkynes is disclosed, which enables the synthesis of a broad range of unsymmetrical 1,3-diynes in good to excellent yields. The results disprove the long-held belief that homocouplings are exclusively favored in the Glaser-Hay reaction.

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