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724-92-5

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724-92-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 724-92-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,2 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 724-92:
(5*7)+(4*2)+(3*4)+(2*9)+(1*2)=75
75 % 10 = 5
So 724-92-5 is a valid CAS Registry Number.

724-92-5Relevant articles and documents

Selective electrochemical oxidation of aromatic hydrocarbons and preparation of mono/multi-carbonyl compounds

Li, Zhibin,Zhang, Yan,Li, Kuiliang,Zhou, Zhenghong,Zha, Zhenggen,Wang, Zhiyong

, p. 2134 - 2141 (2021/09/29)

A selective electrochemical oxidation was developed under mild condition. Various mono-carbonyl and multi-carbonyl compounds can be prepared from different aromatic hydrocarbons with moderate to excellent yield and selectivity by virtue of this electrochemical oxidation. The produced carbonyl compounds can be further transformed into α-ketoamides, homoallylic alcohols and oximes in a one-pot reaction. In particular, a series of α-ketoamides were prepared in a one-pot continuous electrolysis. Mechanistic studies showed that 2,2,2-trifluoroethan-1-ol (TFE) can interact with catalyst species and generate the corresponding hydrogen-bonding complex to enhance the electrochemical oxidation performance. [Figure not available: see fulltext.]

Synthesis of aliphatic α-ketoamides from α-substituted methyl ketones: Via a Cu-catalyzed aerobic oxidative amidation

Cha, Hyojin,Chai, Jin Young,Chi, Dae Yoon,Kim, Hyeong Baik

, p. 4320 - 4326 (2021/05/31)

α-Ketoamides are an important key functional group and have been used as versatile and valuable intermediates and synthons in a variety of functional group transformations. Synthetic methods for making aryl α-ketoamides as drug candidates have been greatly improved through metal-catalyzed aerobic oxidative amidations. However, the preparation of alkyl α-ketoamides through metal-catalyzed aerobic oxidative amidations has not been reported because generating α-ketoamides from aliphatic ketones with two α-carbons theoretically provides two distinct α-ketoamides. Our strategy is to activate the α-carbon by introducing an N-substituent at one of the two α-positions. The key to this strategy is how heterocyclic compounds such as triazoles and imidazoles affect the selectivity of the synthesis of the alkyl α-ketoamides. From this basic concept, and by optimizing the reaction and elucidating the mechanism of the synthesis of aryl α-ketoamides via a copper-catalyzed aerobic oxidative amidation, we prepared fourteen aliphatic α-ketoamides in high yields (48-84%). This journal is

Synthesis method of alpha-ketoamide compound

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Paragraph 0124-0130, (2020/12/09)

The invention discloses a synthesis method of an alpha-ketoamide compound. The preparation method comprises the following steps of: taking an isocyanate compound as shown in a formula I and a benzoylformic acid compound as shown in a formula II as raw mat

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