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40025-43-2

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40025-43-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40025-43-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,0,2 and 5 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 40025-43:
(7*4)+(6*0)+(5*0)+(4*2)+(3*5)+(2*4)+(1*3)=62
62 % 10 = 2
So 40025-43-2 is a valid CAS Registry Number.

40025-43-2Downstream Products

40025-43-2Relevant articles and documents

Direct arylation of heteroarenes catalyzed by a palladium-1,10- phenanthroline complex

Takita, Ryo,Fujita, Daichi,Ozawa, Fumiyuki

supporting information; experimental part, p. 959 - 963 (2011/06/17)

A new entry in direct arylation of heteroarenes using Pd(OAc)2 and 1,10-phenanthroline as a nitrogen-based ligand is reported. The long induction period observed at the initial stage of the reaction was effectively reduced by modification of th

Substituted propargylic sulfoxides: synthesis and -sigmatropic rearrangement in the presence of thiophilic reagents

Baudin, J. B.,Julia, S. A.,Lorne, R.

, p. 440 - 456 (2007/10/02)

The allenic sulfoxides 2 and 12 were converted into the substituted propargylic sulfoxides 3 and 13, respectively, by deprotonation with methyl lithium and reaction with electrophilic reagents.Smooth thermal -sigmatropic rearrangement of 3 and 13, using 2-mercapto-1-methylimidazole to desulfurize the intermediate allenic sulfenate XVa, yielded the corresponding conjugated enones 10.The possible reaction mechanism for these two transformations were examined. Key words: Allenic sulfoxides; propargylic sulfoxides; organolithium compounds adjacent to sulfoxides; -sigmatropic rearrangement; desulfurization; α,β-unsaturated enones; furanes.

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