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91233-17-9

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91233-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91233-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,3 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91233-17:
(7*9)+(6*1)+(5*2)+(4*3)+(3*3)+(2*1)+(1*7)=109
109 % 10 = 9
So 91233-17-9 is a valid CAS Registry Number.

91233-17-9Downstream Products

91233-17-9Relevant academic research and scientific papers

The Invention of New Radical Chain Reactions. Part 9. Further Radical Chemistry of Thiohydroxamic Esters; Formation of Carbon-Carbon Bonds

Barton, Derek H.R.,Crich, David,Kretzschmar, Gerhard

, p. 39 - 54 (2007/10/02)

Carbon radicals derived from the esters of several types of thiohydroxamic acids have been trapped in a number of different ways.Particular attention has been paid to carbon-carbon bond formation by addition to suitably activated ethylenic linkages.Carboxylic acids can be conveniently converted into homo- and bishomo-acids by free radical chemistry based on thiohydroxamic esters.In a coda the tautomerism of the thiohydroxamic acids have been examined by physical methods.It is confirmed that the esters used are derivatives of the thione tautomer.

FORMATION OF CARBON-CARBON BONDS WITH RADICALS DERIVED FROM THE ESTERS OF THIOHYDROXAMIC ACIDS

Barton, Derek H. R.,Crich, David,Kretzschmar, Gerhard

, p. 1055 - 1058 (2007/10/02)

Radicals formed from the esters of thiohydroxamic acids readily add to electron deficient olefins to give adducts of potential synthetic value in variable yield.In certain cases the added sulphur function is easily eliminated with reformation of olefin.

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