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127410-85-9

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127410-85-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127410-85-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,4,1 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 127410-85:
(8*1)+(7*2)+(6*7)+(5*4)+(4*1)+(3*0)+(2*8)+(1*5)=109
109 % 10 = 9
So 127410-85-9 is a valid CAS Registry Number.

127410-85-9Downstream Products

127410-85-9Relevant articles and documents

Zirconium-Mediated Cross-Coupling of Terminal Alkynes and Vinyl Bromides: Selective Synthesis of Cyclobutene and 1,3-Diene Derivatives

Barluenga, Jose,Rodriguez, Felix,Alvarez-Rodrigo, Lucia,Fananas, Francisco J.

, p. 101 - 108 (2004)

A diastereoselective synthesis of 1,3-butadiene or cyclobutene derivatives by a zirconium-mediated reaction of alkenyllithium compounds and vinyl bromides is reported. The key steps involve the generation of zirconocene-alkyne complexes from haloalkenes and subsequent coupling with alkenyl bromides. Thus, formally the process supposes the cross-coupling reaction between a terminal alkyne and an alkenyl bromide. Moreover, the use of butyl vinyl ether instead of vinyl bromide as the unsaturated system allows an alternative access to different 1,3-butadiene regioisomers.

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