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1092557-79-3

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1092557-79-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1092557-79-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,2,5,5 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1092557-79:
(9*1)+(8*0)+(7*9)+(6*2)+(5*5)+(4*5)+(3*7)+(2*7)+(1*9)=173
173 % 10 = 3
So 1092557-79-3 is a valid CAS Registry Number.

1092557-79-3Downstream Products

1092557-79-3Relevant articles and documents

Synthesis of pulvinic derivatives via TBAF-mediated regioselective opening of an unsymmetrical monoaromatic pulvinic dilactone

Habrant, Damien,Le Roux, Antoine,Poigny, Stephane,Meunier, Stephane,Wagner, Alain,Mioskowski, Charles

supporting information; experimental part, p. 9490 - 9493 (2009/04/06)

(Chemical Equation Presented) The synthesis of the monoaromatic pulvinic dilactone 1 from a tetronic acid derivative is reported. The reaction of 1 with various amines was found to provide the two pulvinamides regioisomers 2a and 2b. Using tetrabutylammonium fluoride (TBAF) as an activator, pulvinamides 2a could be obtained with excellent regioselectivities and good yields. Additions of alcohols to 1 are also studied, leading to similar observations.

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