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80053-54-9

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80053-54-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80053-54-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,0,5 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 80053-54:
(7*8)+(6*0)+(5*0)+(4*5)+(3*3)+(2*5)+(1*4)=99
99 % 10 = 9
So 80053-54-9 is a valid CAS Registry Number.

80053-54-9Downstream Products

80053-54-9Relevant articles and documents

Organoaluminum-Promoted Beckmann Rearrangement of Oxime Sulfonates

Maruoka, Keiji,Miyazaki, Tohru,Ando, Mamoru,Matsumura, Yasushi,Sakane, Soichi,et al.

, p. 2831 - 2843 (2007/10/02)

The Beckmann rearrangement of oxime sulfonates with simultaneous nucleophilic trapping of the intermediary iminocarbocation by organoaluminum reagents is described.This process provides a new and highly efficient route to imino thioethers, imino selenoethers, imino nitriles, and α-alkylated amines starting from oxime sulfonates by the use of dialkylaluminum thiolates, selenolates, diethylaluminum chloride-trimethylsilyl cyanide, and trialkylaluminum-diisobutylaluminum hydride systems, respectively.The present organoaluminum-promoted Beckmann rearrangement of oxime sulfonates has been successfully applied to the synthesis of naturally occuring alkaloids, pumiliotoxin C and solenopsin A and B, in stereoselective fashion.Moreover, α,α-dialkylation of amines can be realized by the successive treatment of oxime sulfonates with trialkylaluminum followed by allylic or propargylic Grignard reagents in synthetically useful yields.

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