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77445-12-6

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77445-12-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77445-12-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,4,4 and 5 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 77445-12:
(7*7)+(6*7)+(5*4)+(4*4)+(3*5)+(2*1)+(1*2)=146
146 % 10 = 6
So 77445-12-6 is a valid CAS Registry Number.

77445-12-6Downstream Products

77445-12-6Relevant articles and documents

I2-induced cascade cyclization and dearomatization of indoles for the highly efficient synthesis of iodinated and vinylic spiroindolenines

Li, Yazhou,Liang, Xuewu,Liu, Hong,Liu, Qi,Liu, Xuyi,Wei, Xiaohui,Zhou, Yu

supporting information, p. 9165 - 9171 (2021/11/23)

The spiroindolenine framework is a privileged heterocyclic motif and is widely present in numerous indole alkaloids. Herein, we develop a metal-free and environmentally friendly approach for the intramolecular cascade cyclization and dearomatization of indole derivatives to selectively afford iodinated and vinylic spiroindolenines by a substrate-controlled strategy. Simple operation, mild conditions, and high yield make this strategy a green and attractive pathway to construct functionalizable spiroindolenine scaffolds, which could be converted into diverse useful spiroindolenine derivatives.

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