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6873-59-2

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6873-59-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6873-59-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,7 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6873-59:
(6*6)+(5*8)+(4*7)+(3*3)+(2*5)+(1*9)=132
132 % 10 = 2
So 6873-59-2 is a valid CAS Registry Number.

6873-59-2Relevant articles and documents

Rare-Earth-Catalyzed Transsulfinamidation of Sulfinamides with Amines

Tu, Tao,Wang, Chaoyu,Wen, Daheng,Zheng, Qingshu

supporting information, p. 3718 - 3723 (2021/05/31)

A rare-earth-catalyzed transsulfinamidation of primary sulfinamides with alkyl, aryl, and heterocyclic amines for the synthesis of diverse secondary and tertiary sulfinamides has been realized. Unlike transition metal-catalyzed cross-coupling approaches restricted to non-commercially available disubstituted O-benzoyl hydroxylamines, this newly developed protocol is suitable for diverse readily available primary and secondary amines without any modifications. Excellent catalytic activity and selectivity are achieved with Eu(OTf)3 under mild reaction conditions, which extends the applicability of rare-earth catalysis.

Copper-Catalyzed Transsulfinamidation of Sulfinamides as a Key Step in the Preparation of Sulfonamides and Sulfonimidamides

Yu, Hao,Li, Zhen,Bolm, Carsten

supporting information, p. 15602 - 15605 (2018/11/10)

Secondary or tertiary sulfinamides are prepared by copper-catalyzed transsulfinamidation of primary sulfinamides with O-benzoyl hydroxylamines. Subsequent oxidations of the resulting products lead to the corresponding sulfonamides. Treatment of N-aryl sulfinamides with O-benzoyl hydroxylamines under copper catalysis provides N-aryl sulfonimidamides.

Metal-Free Cross-Coupling of Arylboronic Acids and Derivatives with DAST-Type Reagents for Direct Access to Diverse Aromatic Sulfinamides and Sulfonamides

Wang, Qiang,Tang, Xiang-Ying,Shi, Min

supporting information, p. 10811 - 10815 (2016/09/03)

We have developed a simple and convenient method for the cross-coupling of arylboronic acids and their derivatives with DAST-type reagents under mild and metal-free conditions to directly afford sulfinamides in moderate to good yields. Moreover, sulfonamides were obtained after a simple oxidation reaction. The reaction mechanism was investigated by18O-labeling experiments, and the synthetic utility was demonstrated by the sulfoxidation of natural products.

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