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40939-34-2

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40939-34-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40939-34-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,9,3 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 40939-34:
(7*4)+(6*0)+(5*9)+(4*3)+(3*9)+(2*3)+(1*4)=122
122 % 10 = 2
So 40939-34-2 is a valid CAS Registry Number.

40939-34-2Downstream Products

40939-34-2Relevant articles and documents

Cs2CO3-promoted cross-dehydrogenative coupling of thiophenols with active methylene compounds

Chen, Qian,Wang, Xiaofeng,Wen, Chunxiao,Huang, Yulin,Yan, Xinxing,Zeng, Jiekun

, p. 39758 - 39761 (2017)

A convenient and efficient α-sulfenylation of carbonyl compounds has been achieved via the halogen-free Cs2CO3-promoted cross-dehydrogenative coupling (CDC) of thiophenols with active methylene compounds using air as the oxidant unde

Α - sulfinyl carbonyl compound as well as synthesis method and application thereof

-

Paragraph 0065-0066, (2019/08/16)

The invention discloses an alpha-sulfenylated carbonyl compound and a synthesis method and application thereof. The synthesis method comprises the following steps: dissolving a beta-dicarbonyl compound and thiophenol by using a solvent, and under the acti

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