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114908-47-3

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114908-47-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 114908-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,4,9,0 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 114908-47:
(8*1)+(7*1)+(6*4)+(5*9)+(4*0)+(3*8)+(2*4)+(1*7)=123
123 % 10 = 3
So 114908-47-3 is a valid CAS Registry Number.

114908-47-3Downstream Products

114908-47-3Relevant articles and documents

Preparation, Reactivity, and Spectral Properties of 1,3-Dioxin Vinylogous Esters: Versatile β-Ketovinyl Cation Equivalents

Smith, Amos B.,Dorsey, Bruce D.,Ohba, Masashi,Lupo, Andrew T.,Malamas, Michael S.

, p. 4314 - 4325 (1988)

A full account of the preparation, reactivity, and spectral properties of three 1,3-dioxin vinylogous esters (4-6) is presented.The synthetic approach of these versatile β-ketovinyl cation equivalents involves a BF3*Et2O-promoted Prins reaction between cyclic 1,3-diketones (i.e., 1,3-cyclopentanedione, 1,3-cyclohexanedione, and 1,3-cycloheptanedione) and either formaldehyde or trioxane.The reactions explored include reductive and alkylative 1,3-ketone transpositions, affording a variety of simple β-unsubstituted and β-substituted α-hydroxymethyl α,β-enones, alkylations with carbon electrophiles, and hydroxylations with oxygen electrophiles.

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