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255053-73-7

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255053-73-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 255053-73-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,5,0,5 and 3 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 255053-73:
(8*2)+(7*5)+(6*5)+(5*0)+(4*5)+(3*3)+(2*7)+(1*3)=127
127 % 10 = 7
So 255053-73-7 is a valid CAS Registry Number.

255053-73-7Downstream Products

255053-73-7Relevant articles and documents

A novel synthesis of chiral 1-allyl-1,2,3,4-tetrahydro-β-carboline employing allyltributyltin and chiral acyl chlorides

Itoh, Takashi,Matsuya, Y?ji,Enomoto, Yasuko,Nagata, Kazuhiro,Miyazaki, Michiko,Ohsawa, Akio

, p. 1799 - 1801 (1999)

β-Carboline was acylated at its 9-position by a chiral acyl chloride, followed by reaction with allyltributyltin and 2,2,2-trichloroethyl chloroformate to afford an 1-allyl-1, 2-dihydrocarboline derivative in a diastereoselective manner. The chiral acyl group at N-9 was readily eliminated by aqueous alkali to give carboxylic acid quantitatively without racemization on C-1 position. The formed 1-allyl-1,2-dihydro-β-carboline was transformed to 1-allyl-1,2,3,4-tetrahydro-β-carboline.

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