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28227-38-5

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28227-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28227-38-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,2 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28227-38:
(7*2)+(6*8)+(5*2)+(4*2)+(3*7)+(2*3)+(1*8)=115
115 % 10 = 5
So 28227-38-5 is a valid CAS Registry Number.

28227-38-5Relevant articles and documents

Stereoselective synthesis and ROESY 1H NMR study of bidiaziridines

Carroccia, Laura,Delfini, Maurizio,Fioravanti, Stefania,Pellacani, Lucio,Sciubba, Fabio

, p. 2069 - 2073 (2012)

The bisaziridination reaction of symmetric (E-s-trans-E)-α-diimines using ethyl nosyloxycarbamate as aminating agent yields symmetrically functionalized bidiaziridines, under mild conditions. The reactions take place with very high stereoselectivity givin

SYNTHESIS OF SUBSTITUTED FLUORENES

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Page/Page column 6-7, (2010/08/09)

The present invention describes a cost-efficient method for preparing di-substituted fluorenes in high yield.

Process for arylating or vinylating or alkynating a nucleophilic compound

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Page 18-19, (2008/06/13)

The present invention concerns a process for arylating or vinylating or alkynating a nucleophilic compound. More particularly, the invention concerns arylating nitrogen-containing organic derivatives. The arylating or vinylating or alkynating process of the invention consists of reacting a nucleophilic compound with a compound carrying a leaving group and is characterized in that the reaction is carried out in the presence of an effective quantity of a catalyst based on a metallic element M selected from groups (VIII), (Ib) and (IIb) of the periodic table and at least one ligand comprising at least one imine function and at least one supplemental nitrogen atom as the chelating atoms.

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