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28115-04-0

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28115-04-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28115-04-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,1 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 28115-04:
(7*2)+(6*8)+(5*1)+(4*1)+(3*5)+(2*0)+(1*4)=90
90 % 10 = 0
So 28115-04-0 is a valid CAS Registry Number.

28115-04-0Relevant articles and documents

Electrochemical [4+2] Annulation-Rearrangement-Aromatization of Styrenes: Synthesis of Naphthalene Derivatives

Ma, Yueyue,Lv, Jufeng,Liu, Chengyu,Yao, Xiantong,Yan, Guoming,Yu, Wei,Ye, Jinxing

, p. 6756 - 6760 (2019)

We report the first electrochemical strategy to synthesize functionalized naphthalene derivatives through [4+2] annulation—rearrangement–aromatization from styrenes under mild conditions. The electrolysis does not require metals, oxidants and high valence substrates, indicating the atom and step-economy ideals. The dehydrodimer produced through [4+2] cycloaddition of 4-methoxy α-methyl styrene is isolated and proved to be the key intermediate for the following oxydehydrogenation to form carbon cation, which undergoes rearrangement–aromatization to afford the final products. This reaction represents a powerful access to construct multi-substituted naphthalene blocks in a single step.

Enantiopure C1-symmetric bis(imino)pyridine cobalt complexes for asymmetric alkene hydrogenation

Monfette, Sebastien,Turner, Zoe R.,Semproni, Scott P.,Chirik, Paul J.

, p. 4561 - 4564 (2012/04/23)

Enantiopure C1-symmetric bis(imino)pyridine cobalt chloride, methyl, hydride, and cyclometalated complexes have been synthesized and characterized. These complexes are active as catalysts for the enantioselective hydrogenation of geminal-disubstituted olefins.

Stannous chloride dihydrate: A new catalyst for the tetrahydropyranylation of alcohols

Joju Davis,Bhalerao,Vittal Rao

, p. 1679 - 1686 (2007/10/03)

Catalytic Stannous chloride dihydrate in polar aprotic solvents like chloroform efficiently catalyse the tetrahydropyranylation of alcohols in a short time under mild conditions.

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