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1027539-64-5

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1027539-64-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1027539-64-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,5,3 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1027539-64:
(9*1)+(8*0)+(7*2)+(6*7)+(5*5)+(4*3)+(3*9)+(2*6)+(1*4)=145
145 % 10 = 5
So 1027539-64-5 is a valid CAS Registry Number.

1027539-64-5Downstream Products

1027539-64-5Relevant articles and documents

Novel and Facile Syntheses of Alkenyl, Alkynyl, and Aryl 1,2-Diketones

Katritzky, Alan R.,Wang, Zuoquan,Lang, Hengyuan,Feng, Daming

, p. 4125 - 4130 (2007/10/03)

Novel and facile routes to alkenyl, alkynyl, and aryl 1,2-diketones utilize treatment of benzotriazole derivatives 1, 7a,b, and 15a-d with butyllithium and subsequent reaction with esters or acid chlorides to yield the substituted intermediates 2a-d, 8a,b, and 16a-g, Reactions of the deprotonated 1 and 7 with α,β-unsaturated aldehydes followed by oxidation also produces similar intermediates 5 and 11a,b. Subsequent hydrolyses of the intermediates of type 2, 5, 8,11, and 16 afford diverse 1,2-diketones in good yields.

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