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20985-27-7

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20985-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20985-27-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,8 and 5 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20985-27:
(7*2)+(6*0)+(5*9)+(4*8)+(3*5)+(2*2)+(1*7)=117
117 % 10 = 7
So 20985-27-7 is a valid CAS Registry Number.

20985-27-7Relevant academic research and scientific papers

Method for synthesizing aromatic acetamide

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Paragraph 0074-0076, (2021/08/07)

The preparation method comprises the following steps: dissolving a compound 1 and a compound 2 in an organic solvent, adding a catalyst, a ligand and an alkaline substance, reacting for 2-10 hours at the temperature of 80-160 DEG C in a protective atmosphere, and post-treating the obtained reaction liquid to obtain a compound 3. According to the method, aryl acetamide is synthesized by using alcohol and aryl acetonitrile in one step, so that not only is the use of a toxic alkylating reagent avoided, but also the amide synthesis step is reduced, and the cost is saved; and no by-product is generated in the reaction process, so that the atom utilization rate reaches 100%, and the development requirement of green chemistry is met.

Base-controlled chemoselectivity: direct coupling of alcohols and acetonitriles to synthesise α-alkylated arylacetonitriles or acetamides

Bai, Liang,Ge, Min-Tong,Li, Chen,Qiu, Yuan-Rui,Wang, Ying,Xia, Ai-Bao,Xu, Dan-Qian

supporting information, p. 15200 - 15204 (2021/09/06)

We achieved chemoselective synthesis of α-alkylated arylacetonitriles and acetamides by combining Ir complex-catalysed direct coupling of alcohols and nitriles by a simple adjustment of the base. Methanol and ethanol performed well as the alkylating reagents. This method of acetonitrile alkylation provided a novel approach for carbon chain extension.

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