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33104-31-3

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33104-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33104-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,1,0 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33104-31:
(7*3)+(6*3)+(5*1)+(4*0)+(3*4)+(2*3)+(1*1)=63
63 % 10 = 3
So 33104-31-3 is a valid CAS Registry Number.

33104-31-3Relevant articles and documents

Stille couplings in supercritical CO2 catalyzed with perfluoro-tagged and un-tagged Pd complexes

Osswald, Thomas,Schneider, Siegfried,Wang, Shaoning,Bannwarth, Willi

, p. 2965 - 2967 (2001)

Stille CC-couplings in supercritical CO2 (scCO2) were performed with perfluoro-tagged and un-tagged Pd complexes in high yields. With fluoro-tagged complexes yields were generally slightly higher. A recycling of the perfluoro-tagged catalyst was also achieved.

Palladium-catalyzed decarbonylative suzuki-miyaura coupling of amides to achieve biaryls via C-N bond cleavage

Luo, Zhongfeng,Xiong, Li,Liu, Tingting,Zhang, Yuqi,Lu, Siqi,Chen, Yuwen,Guo, Weijie,Zhu, Yulin,Zeng, Zhuo

, p. 10559 - 10568 (2019/09/30)

The palladium-catalyzed decarbonylative Suzuki-Miyaura coupling of amides via selective amide C-N bond cleavage was reported, which afforded mild access to substitute biaryl products in the presence of low catalyst loading with NaHCO3 as the base in good yields within 4 h (29 examples).

Chromium-Catalyzed Regioselective Kumada Arylative Cross-Coupling of C(aryl)-O Bonds with a Traceless Activation Strategy

Fan, Fei,Tang, Jinghua,Luo, Meiming,Zeng, Xiaoming

, p. 13549 - 13559 (2018/10/31)

We report here the chromium-catalyzed regioselective Kumada arylative cross-coupling of C(aryl)-O bonds at ambient temperature. By using a simple and low-cost chromium(II) chloride salt as a precatalyst, accompanied by a 2-pyridyl ligation, the catalytic cleavage and arylative coupling of C(aryl)-O bonds were achieved with a traceless activation strategy, overcoming the regioselectivity obstacle when several C-O bonds coexist in the Kumada coupling system.

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