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20603-70-7

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20603-70-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20603-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,0 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20603-70:
(7*2)+(6*0)+(5*6)+(4*0)+(3*3)+(2*7)+(1*0)=67
67 % 10 = 7
So 20603-70-7 is a valid CAS Registry Number.

20603-70-7Downstream Products

20603-70-7Relevant articles and documents

Light-induced Reactions of 2-(N-Alkyl-N-arylamino)acetophenones and Related Amino-ketones: Formation of 1,3-Diarylazetidin-3-ols

Allworth, Keith L.,EI-Hamamy, Ahmad A.,Hesabi, Massoud M.,Hill, John

, p. 1671 - 1678 (2007/10/02)

On irradiation in ether, 2-(N-methylanilino)acetophenones, Ar1NMe-CH2COAr2 (Ar1,Ar2=Ph,Ph; Ph,p-MeO-C6H4; Ph,p-Ph-C6H4; p-Cl-C6H4,Ph; p-MeO-C6H4,Ph; and p-Me-C6H4,Ph), underwent type II cyclisation to isomeric 1,3-diarylazetidin-3-ols.A minor photoproduct was one of the two expected type II fission products, the corresponding acetophenone Ar2COMe.The second type II fission product, imine Ar1N=CH2, was not detected, but in three cases a 1,3-diarylimidazolidine, probably derived from this imine, was isolated.Similar results were obtained on irradiation of the related amino-ketones, 2-(N-methylanilino)-2'-acetonaphthone and 2-(N-methylanilino)-1-tetralone.Direct fission of the C-2-N bond occured on irradiation of 2-(N-methylanilino)indan-1-one and 2,2-dimethyl-2-(N-methylanilino)acetophenone. 2-(N-Alkylanilino)acetophenones, PhNR-CH2COPh (R=Et, Me2CH, and PHCH2), yielded complex mixtures on irradiation.

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