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66128-99-2

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66128-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66128-99-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,1,2 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 66128-99:
(7*6)+(6*6)+(5*1)+(4*2)+(3*8)+(2*9)+(1*9)=142
142 % 10 = 2
So 66128-99-2 is a valid CAS Registry Number.

66128-99-2Relevant articles and documents

Palladium-Catalyzed Tandem Oxidative Arylation/Olefination of Aromatic Tethered Alkenes/Alkynes

Gao, Yang,Gao, Yinglan,Wu, Wanqing,Jiang, Huanfeng,Yang, Xiaobo,Liu, Wenbo,Li, Chao-Jun

supporting information, p. 793 - 797 (2017/02/05)

We describe herein a palladium-catalyzed tandem oxidative arylation/olefination reaction of aromatic tethered alkenes/alkynes for the synthesis of dihydrobenzofurans and 2 H-chromene derivatives. This reaction features a 1,2-difunctionalization of C?C π-bond with two C?H bonds using O2as terminal oxidant at room temperature. The products obtained are valuable synthons and important scaffolds in biological agents and natural products.

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