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71673-28-4

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71673-28-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71673-28-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,7 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 71673-28:
(7*7)+(6*1)+(5*6)+(4*7)+(3*3)+(2*2)+(1*8)=134
134 % 10 = 4
So 71673-28-4 is a valid CAS Registry Number.
InChI:InChI=1/C10H19Cl/c1-2-3-4-5-6-7-8-9-10-11/h5-6H,2-4,7-10H2,1H3/b6-5+

71673-28-4Downstream Products

71673-28-4Relevant articles and documents

Stereoselective Alkyne Hydrogenation by using a Simple Iron Catalyst

Gregori, Bernhard J.,Schwarzhuber, Felix,P?llath, Simon,Zweck, Josef,Fritsch, Lorena,Schoch, Roland,Bauer, Matthias,Jacobi von Wangelin, Axel

, p. 3864 - 3870 (2019/07/31)

The stereoselective hydrogenation of alkynes constitutes one of the key approaches for the construction of stereodefined alkenes. The majority of conventional methods utilize noble and toxic metal catalysts. This study concerns a simple catalyst comprised of the commercial chemicals iron(II) acetylacetonate and diisobutylaluminum hydride, which enables the Z-selective semihydrogenation of alkynes under near ambient conditions (1–3 bar H2, 30 °C, 5 mol % [Fe]). Neither an elaborate catalyst preparation nor addition of ligands is required. Mechanistic studies (kinetic poisoning, X-ray absorption spectroscopy, TEM) strongly indicate the operation of small iron clusters and particle catalysts.

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