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181265-77-0

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181265-77-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181265-77-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,2,6 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 181265-77:
(8*1)+(7*8)+(6*1)+(5*2)+(4*6)+(3*5)+(2*7)+(1*7)=140
140 % 10 = 0
So 181265-77-0 is a valid CAS Registry Number.

181265-77-0Relevant articles and documents

Silver(I)- and Base-Mediated formal [4+3] Cycloaddition of in Situ generated 1,2-Diaza-1,3-dienes with C,N-Cyclic Azomethine Imines: An Efficient Protocol for the Synthesis of Tetrazepine Derivatives

Li, Zefei,Li, Shuaikang,Kan, Tianjiao,Wang, Xinyue,Xin, Xin,Hou, Yunlei,Gong, Ping

, p. 2626 - 2631 (2020)

A silver(I)- and base-mediated formal [4+3] cycloaddition reaction of in situ generated 1,2-diaza-1,3-dienes with in situ formed C,N-cyclic azomethine imines has been developed. This protocol provided an efficient method for the synthesis of biologically important 1,2,4,5-tetrazepine derivatives with a wild substrate scope and excellent functional group tolerance in moderate to excellent yields. (Figure presented.).

Cycloaddition reactions of nitrosoalkenes, azoalkenes and nitrile oxides mediated by hydrotalcite

Lemos, Americo,Lourenco, Joao P.

experimental part, p. 170 - 182 (2010/08/20)

Mg:Al 3:1 hydrotalcite (Ht), used in catalytic quantities, promotes the generation of nitrosoalkenes, azoalkenes and nitrile oxides. These can be intercepted in situ by heterocycles and olefins in [4+2] and [3+2] cycloaddition reactions, producing dihydro

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