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26583-85-7

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26583-85-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26583-85-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,5,8 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 26583-85:
(7*2)+(6*6)+(5*5)+(4*8)+(3*3)+(2*8)+(1*5)=137
137 % 10 = 7
So 26583-85-7 is a valid CAS Registry Number.

26583-85-7Relevant articles and documents

Steric control of geminal Lewis pair behavior: Frustration induced dyotropic rearrangement

Dorkó, éva,Varga, Eszter,Gáti, Tamás,Holczbauer, Tamás,Pápai, Imre,Mehdi, Hasan,Soós, Tibor

supporting information, p. 1525 - 1528 (2014/07/08)

A series of methylene-linked boron/nitrogen geminal Lewis pairs were synthesized and the impacts of sterical effect on their chemical behavior were systematically investigated. Increasing the steric demand around the boron atom is manifested first by an incremental change in the structure of the resulting dative adducts. Accordingly, in the case of phenyl substituents (Alk 2NCH2BPh2), formation of head-to-tail dimers/oligomers was observed, while such an intermolecular association was avoided when o-tolyl moiety was introduced [Alk2NCH 2B(o-Tol)2], affording only an intramolecular dative complex. Further increase of sterical hindrance to a point (i.e. using mesityl substituents), however, caused a radical change in the structure; a dyotropic rearrangement occurred. Thus, steric interference induced a rearrangement in the geminal pair to relieve or minimize the frustration strain. Georg Thieme Verlag Stuttgart New York.

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