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20278-32-4

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20278-32-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20278-32-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,7 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 20278-32:
(7*2)+(6*0)+(5*2)+(4*7)+(3*8)+(2*3)+(1*2)=84
84 % 10 = 4
So 20278-32-4 is a valid CAS Registry Number.

20278-32-4Relevant articles and documents

Fe3O4@GlcA@Cu-MOF: A Magnetic Metal-Organic Framework as a Recoverable Catalyst for the Hydration of Nitriles and Reduction of Isothiocyanates, Isocyanates, and Isocyanides

Ghorbani-Choghamarani, Arash,Taherinia, Zahra

supporting information, p. 902 - 909 (2020/11/30)

A novel magnetic metal-organic framework (Fe3O4@GlcA@Cu-MOF) has been prepared and characterized by spectroscopic, microscopic, and magnetic techniques. This magnetically separable catalyst exhibited high catalytic activity for nitrile hydration and the ability to reduce isothiocyanates, isocyanates, and isocyanides with excellent activity and selectivity without any additional reducing agent.

Copper-catalyzed chemoselective cross-coupling reaction of thioamides and α-diazocarbonyl compounds: Synthesis of enaminones

Pal, Arpal,Koduri, Naga D.,Wang, Zhiguo,Quiroz, Erika Lopez,Chong, Alexandra,Vuong, Matthew,Rajagopal, Nisha,Nguyen, Michael,Roberts, Kenneth P.,Hussaini, Syed R.

supporting information, p. 586 - 589 (2017/01/16)

The development of operationally simple and cost-effective methods for C[sbnd]C bond formation reactions are highly important in pharmaceutical, agrochemical and material research. In this article we describe the first copper-catalyzed cross-coupling reaction of thioamides with acceptor/acceptor-substituted and acceptor-only substituted α-diazocarbonyl compounds to yield enaminones. The reaction shows broad substrate scope in terms of thioamides and diazocarbonyl compounds. Primary, secondary and tertiary thioamides all give enanminones when reacted with α-diazodiesters, α-diazoketoesters, α-diazodiketones, α-diazoketoamides, α-diazoesteramides, α-diazoketosulfones and α-diazomonoketones.

Environmentally green synthesis of thioformamide derivatives

Ramazani, Ali,Joo, Sang Woo,Nasrabadi, Fatemeh Zeinali

, p. 405 - 412 (2013/07/26)

Reactions of isocyanides with thioacids in water proceeded smoothly at room temperature and in neutral conditions to afford thioformylamide and thioformamide derivatives in high yields. The reaction proceeded smoothly and cleanly under mild conditions and

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