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950677-69-7

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950677-69-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 950677-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,0,6,7 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 950677-69:
(8*9)+(7*5)+(6*0)+(5*6)+(4*7)+(3*7)+(2*6)+(1*9)=207
207 % 10 = 7
So 950677-69-7 is a valid CAS Registry Number.

950677-69-7Relevant articles and documents

Synthesis of amido-N-imidazolium salts and their applications as ligands in suzuki-miyaura reactions: Coupling of hetero- aromatic halides and the synthesis of milrinone and irbesartan

Kumar, Manian Rajesh,Park, Kyungho,Lee, Sunwoo

supporting information; experimental part, p. 3255 - 3266 (2011/02/23)

A new catalytic system based on palladium-amido-N-heterocyclic carbenes for Suzuki-Miyaura coupling reactions of heteroaryl bromides is described. A variety of sterically bulky, amido-N-imidazolium salts were synthesized in high yields from the corresponding anilines. This catalytic system effectively promoted Suzuki-Miyaura couplings of heteroaryl bromides and chlorides with a range of boronic acids to give the corresponding aryl compounds in high yield. The yield was increased with increasing steric bulkiness of the substituted group. Especially, 1-(2,6-diisopropylphenyl)-3-N-(2,4,6-tri-tert- butylphenylacetamido)imidazolium bromide (4bc) exhibited 850,000 TON in the coupling reaction of 2-bromopyridine and phenylboronic acid. In addition, pharmaceutical compounds such as milrinone and irbesartan were synthesized via Suzuki-Miyaura coupling using sterically bulky, amido-N-imidazolium salt (4bc) as a ligand. Copyright

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