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21086-38-4

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21086-38-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21086-38-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,8 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21086-38:
(7*2)+(6*1)+(5*0)+(4*8)+(3*6)+(2*3)+(1*8)=84
84 % 10 = 4
So 21086-38-4 is a valid CAS Registry Number.

21086-38-4Relevant articles and documents

Direct β-functionalization of cyclic ketones with aryl ketones via the merger of photoredox and organocatalysis

Petronijevic, Filip R.,Nappi, Manuel,MacMillan, David W. C.

supporting information, p. 18323 - 18326 (2014/01/06)

The direct β-coupling of cyclic ketones with aryl ketones has been achieved via the synergistic combination of photoredox catalysis and organocatalysis. Diaryl oxymethyl or aryl-alkyl oxymethyl radicals, transiently generated via single-electron reduction

Ytterbium Metal Mediated Synthesis of Symmetrical and Unsymmetrical Pinacols from Carbonyl Compounds

Hou, Zhaomin,Takamine, Kan,Fujiwara, Yuzo,Taniguchi, Hiroshi

, p. 2061 - 2064 (2007/10/02)

Reaction of aromatic aldehydes and ketones with ytterbium metal gives the corresponding pinacols in high yields.Cross-coupling reaction of benzophenone with other carbonyl compounds to produce unsymmetrical pinacols is also described.

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