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92864-46-5

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92864-46-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 92864-46-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,2,8,6 and 4 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 92864-46:
(7*9)+(6*2)+(5*8)+(4*6)+(3*4)+(2*4)+(1*6)=165
165 % 10 = 5
So 92864-46-5 is a valid CAS Registry Number.

92864-46-5Downstream Products

92864-46-5Relevant articles and documents

A Unified Approach for Divergent Synthesis of Heterocycles via TMSOTf-Catalyzed Formal [3+2] Cycloaddition of Electron-Rich Alkynes

Chen, Ping,Cao, Wei,Li, Xiangqian,Shi, Dayong

, p. 4789 - 4794 (2021)

We present a synthetic protocol for the construction of polysubstituted five-membered heterocycles via TMSOTf-catalyzed formal [3+2] cycloaddition of electron-rich alkynes, which features free from any metal, atom economy and water as the main by-product. Furthermore, alkenyl ether adduct has been verified as the key intermediate. Notably, by utilizing this approach, we can synthesize a broad range of polysubstituted furans, thiophenes and pyrroles, and extend this transformation to deliver fused-polyheterocycles. This reaction can be achieved on a gram scale and the corresponding products are intermediates for producing diverse potentially useful scaffolds. (Figure presented.).

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