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79630-90-3

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79630-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79630-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,6,3 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 79630-90:
(7*7)+(6*9)+(5*6)+(4*3)+(3*0)+(2*9)+(1*0)=163
163 % 10 = 3
So 79630-90-3 is a valid CAS Registry Number.

79630-90-3Downstream Products

79630-90-3Relevant articles and documents

Preparation of 1,3-Diketones and of Nitro-diketones by (1:1)-Acylation of Lithium Enolates with Acyl Chlorides

Seebach, Dieter,Weller, Thomas,Protschuk, Gerd,Beck, Albert K.,Hoekstra, Marvin S.

, p. 716 - 735 (2007/10/02)

Slow addition of precooled solutions of lithium enolates in THF to solutions of equimolar amounts of acyl chlorides in the same solvent at temperatures between -80 and -100 deg furnishes 1,3-diketones in acceptable to good yields.Even 3-nitropropionyl and 4-nitrobutyryl chloride can be employed for the (1:1)-acylation of enolates to give the synthetically useful 5- and 6-nitro-1,3-diketones 13 and 25, respectively.The scope and the limitations of this method of preparing 1,3-diketones are given and are compared with alternative methods.

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