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1391990-55-8

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1391990-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1391990-55-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,1,9,9 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1391990-55:
(9*1)+(8*3)+(7*9)+(6*1)+(5*9)+(4*9)+(3*0)+(2*5)+(1*5)=198
198 % 10 = 8
So 1391990-55-8 is a valid CAS Registry Number.

1391990-55-8Downstream Products

1391990-55-8Relevant articles and documents

Concise route to 3-arylisoquinoline skeleton by lewis acid catalyzed c(sp3)-h bond functionalization and its application to formal synthesis of (±)-Tetrahydropalmatine

Mori, Keiji,Kawasaki, Taro,Akiyama, Takahiko

supporting information; experimental part, p. 1436 - 1439 (2012/05/05)

An expeditious route to furnish an isoquinoline skeleton via hydride shift mediated C-H bond functionalization was developed. In this process, an unusual [1,5]-H shift without the assistance of the adjacent heteroatom took place to produce tetrahydroisoquinoline derivatives in good to excellent chemical yields. The formal synthesis of (±)-tetrahydropalmatine was achieved by exploiting this new transformation.

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