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190433-54-6

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190433-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 190433-54-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,0,4,3 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 190433-54:
(8*1)+(7*9)+(6*0)+(5*4)+(4*3)+(3*3)+(2*5)+(1*4)=126
126 % 10 = 6
So 190433-54-6 is a valid CAS Registry Number.

190433-54-6Downstream Products

190433-54-6Relevant articles and documents

Synthesis of α-Ketoamides from β-Ketonitriles and Primary Amines: A Catalyst-Free Oxidative Decyanation–Amidation Reaction

Zhang, Ya-Kai,Wang, Bin

, p. 5732 - 5735 (2019/08/27)

AN oxidative decyanation–amidation of β-ketonitriles and primary amines readily occurs using hydrogen peroxide sodium carbonate adduct (Na2CO3·1.5H2O2), K2CO3, and 1,4-dioxane. This reactio

Enantioselective Iridium-Catalyzed Hydrogenation of α-Keto Amides to α-Hydroxy Amides

Gu, Guoxian,Yang, Tilong,Yu, Ouran,Qian, Hua,Wang, Jiang,Wen, Jialin,Dang, Li,Zhang, Xumu

supporting information, p. 5920 - 5923 (2017/11/10)

A highly enantioselective iridium-catalyzed hydrogenation of α-keto amides to form α-hydroxy amides has been achieved with excellent results (up to >99% conversion and up to >99% ee, TON up to 100?000). As an example, this protocol was applied to the synthesis of (S)-4-(2-amino-1-hydroxyethyl)benzene-1,2-diol, the enantiomer of norepinephrine, which is widely used as an injectable drug for the treatment of critically low blood pressure. Density functional theory (DFT) calculations were also carried out to reveal the reaction mechanism.

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