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63329-72-6

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63329-72-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 63329-72-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,3,2 and 9 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 63329-72:
(7*6)+(6*3)+(5*3)+(4*2)+(3*9)+(2*7)+(1*2)=126
126 % 10 = 6
So 63329-72-6 is a valid CAS Registry Number.

63329-72-6Relevant articles and documents

Access to Spirocyclic Benzothiophenones with Multiple Stereocenters via an Organocatalytic Cascade Reaction

Formánek, Bed?ich,Tauchman, Ji?í,Císa?ová, Ivana,Vesely, Jan

, p. 8510 - 8521 (2020/07/16)

The present report describes an organocatalytic cascade reaction between 2-alkylidene benzo[b]thiophenone derivatives and enones in the presence of the Cinchona alkaloid amine. Spirobenzothiophenonic cyclohexane derivatives containing three stereocenters were prepared via one-step synthesis in yields ranging from 88 to 96% and in enantioselectivities (enantiomeric excess (ee)) ranging from 85 to 97%, with diastereoselectivities of approximately 14/2/1. Therefore, this method provides an efficient route for the synthesis of a new class of optically active 2-spirobenzothiophenones.

METHOD FOR SYNTHESIZING THIOAURONES

-

, (2021/02/12)

An embodiment of the present invention is a process for producing 2 - benzoic acid compound by reacting a thiosalicylic acid with a strongly basic substance and a benzylhalide. The 2 - methoxy - N N-methyl -2 - benzamides, which are reacted with N - methoxy - N N-methylcarbamoyl chloride to produce N - methoxy-N-methylbenzamides. The N - methoxy - N N-methyl -2 - (benzocyclohexyl) benzamide is treated with arylethynyl salt to prepare 1 - (2- benzocyclohexyl) phenyl -3 - phenyl -2 - profin -1 . The 1 - (2-) phenyl -3 - phenyl -2 - profin -1 - one is treated with an acid material. Provided is a method for preparing a thiouronone compound.

Cooperative Activating Effect of Tertiary Amine/DMSO on Elemental Sulfur: Direct Access to Thioaurones from 2′-Nitrochalcones under Mild Conditions

Nguyen, Thanh Binh,Retailleau, Pascal

supporting information, p. 186 - 189 (2018/01/17)

A new mode for the activation of elemental sulfur is reported. In the presence of both DMSO and a tertiary aliphatic amine (triethylamine or N-methylpiperidine), this element reacts directly with a wide range of 2′-nitrochalcones 1 to provide the corresponding thioaurones 2 in high yields even at room temperature and in the absence of transition metal catalyst.

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