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1220294-96-1

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1220294-96-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1220294-96-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,0,2,9 and 4 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1220294-96:
(9*1)+(8*2)+(7*2)+(6*0)+(5*2)+(4*9)+(3*4)+(2*9)+(1*6)=121
121 % 10 = 1
So 1220294-96-1 is a valid CAS Registry Number.

1220294-96-1Downstream Products

1220294-96-1Relevant articles and documents

Tuned C-H functionalization to construct aza-podophyllotoxin/aza- conidendrin derivatives by means of domino cyclization

Hu, Yimin,Qu, Yuan,Wu, Fenghua,Gui, Jinghan,Wei, Yun,Hu, Qiong,Wang, Shaowu

supporting information; scheme or table, p. 309 - 314 (2010/06/19)

An efficient domino cyclization method for the construction of aza-podophyllotoxin/aza-conidendrin derivatives has been established. Reactions of different dienes with aryl halides in the presence of a palladium catalytic system produced different kinds of podophyllotoxin derivatives through a highly regioselective C-H functionalization. Treatment of dienes with aryl halides that have electron-withdrawing substituents on the phenyl ring created aza-podophyllotoxin derivatives by means of the functionalization of the C-H bonds ortho to the C-Halide bonds of the incoming aryl halides. The reaction of dienes with 1-iodobenzene or aryl halides that incorporate electron-donating groups produced azaconidendrin derivatives by means of the functionalization of both sp3 C-H and sp2 C-H bonds. The regioselective C-H functionalization for the formation of different pseudo-podophyllotoxin/- conidendrin derivatives is proven by analyses of the 1H NMR spectra of the products and selective X-ray analyses of the structures of the products. Thus the palladium-catalyzed domino cyclization of 1,6-dienes for the preparation of aza-podophyllotoxin/aza-conidendrin derivatives can be controlled by selectively controlling the C-H functionalization.

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