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851659-49-9

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851659-49-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 851659-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,6,5 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 851659-49:
(8*8)+(7*5)+(6*1)+(5*6)+(4*5)+(3*9)+(2*4)+(1*9)=199
199 % 10 = 9
So 851659-49-9 is a valid CAS Registry Number.

851659-49-9Downstream Products

851659-49-9Relevant articles and documents

Synthesis of fused indoles by sequential palladium-catalyzed Heck reaction and N-heteroannulation

S?derberg, Bj?rn C.G.,Hubbard, Jeremiah W.,Rector, Stacey R.,O'Neil, Shannon N.

, p. 3637 - 3649 (2007/10/03)

A route to 3,4-fused indoles via two consecutive palladium-catalyzed reactions; an intramolecular Heck reaction followed by a reductive N-heteroannulation is described. Using this route, a number of indoles have been prepared having a variety of ring sizes anchored to the 3- and 4-position of the indole nucleus. Furthermore, a number of functional groups, both carbon and heteroatom substituents can be introduced in (and on) the additional ring without any detrimental effects on the two reactions.

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