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1622406-82-9

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1622406-82-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1622406-82-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,2,4,0 and 6 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1622406-82:
(9*1)+(8*6)+(7*2)+(6*2)+(5*4)+(4*0)+(3*6)+(2*8)+(1*2)=139
139 % 10 = 9
So 1622406-82-9 is a valid CAS Registry Number.

1622406-82-9Downstream Products

1622406-82-9Relevant articles and documents

Anionic access to silylated and germylated binuclear heterocycles

Boddaert, Thomas,Francois, Cyril,Mistico, Laetitia,Querolle, Olivier,Meerpoel, Lieven,Angibaud, Patrick,Durandetti, Muriel,Maddaluno, Jacques

, p. 10131 - 10139 (2014/08/18)

A simple access to silylated and germylated binuclear heterocycles, based on an original anionic rearrangement, is described. A set of electron-rich and electron-poor silylated aromatic and heteroaromatic substrates were tested to understand the mechanism and the factors controlling this rearrangement, in particular its regioselectivity. This parameter was shown to follow the rules proposed before from a few examples. Then, the effect of the substituents borne by the silicon itself, in particular the selectivity of the ligand transfer, was studied. Additionally, this chemistry was extended to germylated substrates. A hypervalent germanium species, comparable to the putative intermediate proposed with silicon, seems to be involved. However, a pathway implicating the elimination of LiCH2Cl was observed for the first time with this element, leading to unexpected products of the benzo-oxa (or benzo-aza) germol-type.

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