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40400-25-7

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40400-25-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40400-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,0 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 40400-25:
(7*4)+(6*0)+(5*4)+(4*0)+(3*0)+(2*2)+(1*5)=57
57 % 10 = 7
So 40400-25-7 is a valid CAS Registry Number.

40400-25-7Relevant articles and documents

An electrochemical method for deborylative selenylation of arylboronic acids under metal- and oxidant-free conditions

Cai, Hu,Fu, Zhengjiang,Guo, Shengmei,He, Dongdong,Yi, Xuezheng,Yin, Jian

supporting information, p. 130 - 135 (2022/01/19)

An efficient protocol to synthesize aryl selenoethers through deborylative selenylation of widely available arylboronic acids has been established under electrochemical conditions in the absence of metal catalyst and external oxidant. The synthesis of bio

Metal-Free Synthesis of Selenodihydronaphthalenes by Selenoxide-Mediated Electrophilic Cyclization of Alkynes

An, Shaoyu,Li, Pingfan,Zhang, Zhong

, p. 3059 - 3070 (2021/07/22)

A transition-metal-free, selenium mediated electrophilic cyclization reaction was realized through a one-pot procedure between simple alkynes and triflic anhydride-activated selenoxides to give selenium containing dihydronaphthalene products. This method gave good to very high yields for all products, including selenium-substituted phenanthrene, dihydroquinoline, 2H-chromene, and coumarin, which can be further transformed to other functionalized compounds.

A facile one-pot preparation of organoselanyltrifluoroborates from dihalobenzenes and their cross-coupling reaction

Ahn, Hong Ryul,Cho, Young Ae,Kim, Dong-Su,Chin, Jungwook,Gyoung, Young-Soo,Lee, Seokjoon,Kang, Heonjoong,Ham, Jungyeob

supporting information; experimental part, p. 361 - 364 (2009/08/15)

(Chemical Equation Presented) Potassium organoselanyltrifluoroborates have been prepared from the corresponding dihalobenzene compounds in 56-92% yields through a facile one-pot, multicomponent reaction. The microwave-promoted Suzuki-Miyaura cross-couplin

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