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1256348-07-8

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1256348-07-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256348-07-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,3,4 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1256348-07:
(9*1)+(8*2)+(7*5)+(6*6)+(5*3)+(4*4)+(3*8)+(2*0)+(1*7)=158
158 % 10 = 8
So 1256348-07-8 is a valid CAS Registry Number.

1256348-07-8Downstream Products

1256348-07-8Relevant articles and documents

InI3- or ZnI2-catalyzed reaction of hydroxylated 1,5-allenynes with thiols: A new access to 3,5-disubstituted toluene derivatives

Ma, Jie,Peng, Lingling,Zhang, Xiu,Zhang, Zhe,Campbell, Melody,Wang, Jianbo

, p. 2214 - 2220 (2011/06/19)

Transition-metal-activated alkynes or allenes can accept nucleophilic attack and undergo direct addition of the nucleophiles to the unsaturated bonds or trigger subsequent rearrangement reactions. This chemistry has witnessed increasing development in recent years. In this report, we have focused on the metal-catalyzed reactions of a variety of substituted propargyl allenic alcohols and thiophenols using indiumACHTUNGTRENUNG(III) and zinc(II) catalysts, which can activate both the alcohol and alkyne. In this reaction, thio groups play the role of a nucleophile and trigger subsequent rearrangements to give benzene derivatives. The products can be further transformed into various 1,3,5-trisubstituted aromatic compounds by nickel-catalyzed coupling reactions through the cleavage of the C-S bonds.

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