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42858-50-4

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42858-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42858-50-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,8,5 and 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42858-50:
(7*4)+(6*2)+(5*8)+(4*5)+(3*8)+(2*5)+(1*0)=134
134 % 10 = 4
So 42858-50-4 is a valid CAS Registry Number.

42858-50-4Downstream Products

42858-50-4Relevant articles and documents

Synthesis of α,β-unsaturated carbonyl compounds via a visible-light-promoted organocatalytic aerobic oxidation

Zhang, Junlin,Wang, Leming,Liu, Qi,Yang, Zhen,Huang, Yong

supporting information, p. 11662 - 11664 (2013/12/04)

α,β-Unsaturated ketones and aldehydes have been synthesized from their corresponding silyl enol ethers in a straightforward protocol involving a visible-light promoted organocatalytic, aerobic oxidation reaction. A cheap organic dye was used catalytically in these reactions as the photosensitizer.

A Simple, Effective, New, Palladium-Catalyzed Conversion of Enol Silanes to Enones and Enals

Larock, Richard C.,Hightower, Timothy R.,Kraus, George A.,Hahn, Pat,Zheng, Deye

, p. 2423 - 2426 (2007/10/02)

Enol silanes derived from aldehydes and ketones are readily converted to the corresponding α,β-unsaturated carbonyl compounds by 10percent Pd(OAc)2 in the presence of one atmosphere of oxygen in DMSO as the solvent.

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