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15656-90-3

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15656-90-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15656-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,6,5 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 15656-90:
(7*1)+(6*5)+(5*6)+(4*5)+(3*6)+(2*9)+(1*0)=123
123 % 10 = 3
So 15656-90-3 is a valid CAS Registry Number.

15656-90-3Relevant articles and documents

Synthesis and Reactions of 3d Metal Complexes with the Bulky Alkoxide Ligand [OCtBu2Ph]

Bellow, James A.,Yousif, Maryam,Fang, Dong,Kratz, Eric G.,Cisneros, G. Andrés,Groysman, Stanislav

, p. 5624 - 5633 (2015)

Treatment of NiCl2(dme) and NiBr2(dme) (dme = dimethoxyethane) with 2 equiv of LiOR (OR = OCtBu2Ph) forms the distorted trigonal planar complexes [NiLiX(OR)2(THF)2] (THF = tetrahydrofuran)

The retro Grignard addition reaction revisited: The reversible addition of benzyl reagents to ketones

Christensen, Stig Holden,Holm, Torkil,Madsen, Robert

, p. 1478 - 1483 (2014/02/14)

The Grignard addition reaction is known to be a reversible process with allylic reagents, but so far the reversibility has not been demonstrated with other alkylmagnesium halides. By using crossover experiments it has been established that the benzyl addition reaction is also a reversible transformation. The retro benzyl reaction was shown by the addition of benzylmagnesium chloride to di-tert-butyl ketone followed by exchange of both the benzyl and the ketone moiety with another substrate. Similar experiments were performed with phenylmagnesium bromide and tert-butylmagnesium chloride, but in these two cases the Grignard addition reaction did not show any sign of a reverse transformation.

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