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68668-00-8

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68668-00-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68668-00-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,6,6 and 8 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 68668-00:
(7*6)+(6*8)+(5*6)+(4*6)+(3*8)+(2*0)+(1*0)=168
168 % 10 = 8
So 68668-00-8 is a valid CAS Registry Number.

68668-00-8Downstream Products

68668-00-8Relevant articles and documents

PhB(OH)2-Promoted Electrochemical Sulfuration-Formyloxylation of Styrenes and Selectfluor-Mediated Oxidation-Olefination

Zhao, Yulei,Guo, Xuqiang,Li, Shuai,Fan, Yuhang,Sun, Xuejun,Tian, Laijin

supporting information, p. 9140 - 9145 (2021/11/30)

We report a PhB(OH)2-promoted electrochemical sulfuration-formyloxylation reaction of styrenes employing commercially available thiophenols/thiols as thiolating agents. Specifically, metal catalysts and external chemical oxidants are not needed in the reaction for the formation of β-formyloxy sulfides, and these sulfides can be further converted to (E)-vinyl sulfones via the Selectfluor-mediated oxidation-olefination. Notably, on the basis of this electrochemical oxidation strategy, β-hydroxy sulfide, β-formyloxy sulfoxide, β-formyloxy sulfone, and (E)-vinyl sulfoxide can also be easily prepared.

Copper-Catalyzed Heck-Type Couplings of Sulfonyl Chlorides with Olefins: Efficient and Rapid Access to Vinyl Sulfones

Chen, Qiulin,Liu, Lixia,Wang, Chengming,Xue, Pan

supporting information, (2021/08/27)

A copper-catalyzed redox-neutral alkene sulfonylation reaction has been developed. This reported protocol can be easily scale up to a gram scale, and smoothly applied to the late-stage modification of several bioactive molecules.

Electrochemical sulfonylation of alkenes with sulfonyl hydrazides: A metal- And oxidant-free protocol for the synthesis of (: E)-vinyl sulfones in water

Cai, Jianpeng,Guo, Huishi,Lai, Yin-Long,Liao, Jianhua,Luo, Jianmin,Mo, Yunyan,Yan, Shaoxi,Zhang, Shengling,Zhu, Lejie

, p. 33155 - 33160 (2020/10/05)

An efficient electrochemical transformation of a variety of alkenes and sulfonyl hydrazides into vinyl sulfones with a catalytic amount of tetrabutylammonium iodide in water is reported. The reaction proceeds smoothly to afford vinyl sulfones with good selectivities and yields at room temperature under air in an undivided cell. Cyclic voltammograms and control experiments have been performed to provide preliminary insight into the reaction mechanism. The key features of this reaction include using pure water as solvent, transition metal- and oxidant-free conditions, and being easily scaled up to gram-scale synthesis. This journal is

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