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3477-93-8

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3477-93-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3477-93-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,7 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3477-93:
(6*3)+(5*4)+(4*7)+(3*7)+(2*9)+(1*3)=108
108 % 10 = 8
So 3477-93-8 is a valid CAS Registry Number.

3477-93-8Relevant articles and documents

Cascade Process for Direct Transformation of Aldehydes (RCHO) to Nitriles (RCN) Using Inorganic Reagents NH2OH/Na2CO3/SO2F2 in DMSO

Fang, Wan-Yin,Qin, Hua-Li

, p. 5803 - 5812 (2019/05/14)

A simple, mild, and practical process for direct conversion of aldehydes to nitriles was developed feathering a wide substrate scope and great functional group tolerability (52 examples, over 90% yield in most cases) using inorganic reagents (NH2OH/Na2CO3/SO2F2) in DMSO. This method allows for transformations of readily available, inexpensive, and abundant aldehydes to highly valuable nitriles in a pot, atom, and step-economical manner without transition metals. This protocol will serve as a robust tool for the installation of cyano-moieties to complicated molecules.

SO 2 F 2 -Promoted Dehydration of Aldoximes: A Rapid and Simple Access to Nitriles

Ding, Chengrong,Mei, Guangyao,Wang, Haibo,Zhang, Guofu,Zhao, Yiyong

supporting information, p. 1484 - 1488 (2019/07/15)

A rapid, simple and mild process for the dehydration of aldoximes to give the corresponding nitriles, which utilizes SO 2 F 2 as an efficient reagent, has been developed. A variety of (hetero)arene, alkene, alkyne and aliphatic aldoximes proceeded with high efficiency to afford nitriles in excellent to quantitative yields with great functional group compatibilities in acetonitrile under ambient conditions. Furthermore, an eco-friendly synthetic protocol to access nitriles from aldehydes with ortho -, meta - and para -nitrile groups was also described in aqueous methanol by using inorganic base Na 2 CO 3, and a one-pot synthetic strategy to generate nitriles from aldehydes was proved to be feasible.

PREPARATION METHOD OF 4-AMINOMETHYLBENZOIC ACID

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Page/Page column 6-7, (2012/12/13)

The present invention relates to a preparation method of 4-aminomethylbenzoic acid comprising the following steps: preparing 4-carboxylbenzaldehyde or an alkyl ester thereof (methyl 4-formyl benzoate); reacting the 4-carboxylbenzaldehyde or an alkyl ester thereof (methyl 4-formyl benzoate) with hydroxyamine to oximate the same; and contact reducing 4-carboxylbenzaldehyde oxime or an alkyl ester oxime thereof obtained by the oximation, through hydrogen in a sodium hydroxide aqueous solution. Since methyl 4-hydroxyiminomethylbenzoate is reacted as a raw material in the presence of an alkali, hydrogen of a relatively low pressure can be used and a purification process is also simple, thereby enabling preparation of 4-aminomethylbenzoic acid with a low cost and high yield.

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