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13399-33-2

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13399-33-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13399-33-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,9 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13399-33:
(7*1)+(6*3)+(5*3)+(4*9)+(3*9)+(2*3)+(1*3)=112
112 % 10 = 2
So 13399-33-2 is a valid CAS Registry Number.

13399-33-2Relevant articles and documents

Contra-Thermodynamic Positional Isomerization of Olefins

Zhao, Kuo,Knowles, Robert R.

supporting information, p. 137 - 144 (2022/01/19)

A light-driven method for the contra-thermodynamic positional isomerization of olefins is described. In this work, stepwise PCET activation of a more substituted and more thermodynamically stable olefin substrate is mediated by an excited-state oxidant an

Extending the Substrate Scope in the Hydrogenation of Unfunctionalized Tetrasubstituted Olefins with Ir-P Stereogenic Aminophosphine-Oxazoline Catalysts

Biosca, Maria,Salomó, Ernest,De La Cruz-Sánchez, Pol,Riera, Antoni,Verdaguer, Xavier,Pàmies, Oscar,Diéguez, Montserrat

supporting information, p. 807 - 811 (2019/01/26)

Air-stable and readily available Ir-catalyst precursors modified with MaxPHOX-type ligands have been successfully applied in the challenging asymmetric hydrogenation of tetrasubstituted olefins under mild reaction conditions. Gratifyingly, these catalyst precursors are able to efficiently hydrogenate not only a range of indene derivatives (ee's up to 96%) but also 1,2-dihydronapthalene derivatives and acyclic olefins (ee's up to 99%), which both constitute the most challenging substrates for this transformation.

Direct catalytic cross-coupling of alkenyllithium compounds

Hornillos, Valentn,Giannerini, Massimo,Vila, Carlos,Faans-Mastral, Martn,Feringa, Ben L.

, p. 1394 - 1398 (2015/02/19)

A catalytic method for the direct cross-coupling of alkenyllithium reagents with aryl and alkenyl halides is described. The use of a catalyst comprising Pd2(dba)3/XPhos allows for the stereoselective preparation of a wide variety of substituted alkenes in high yields under mild conditions. In addition (1-ethoxyvinyl)lithium can be efficiently converted into substituted vinyl ethers which, after hydrolysis, give readily access to the corresponding methyl ketones in a one pot procedure.

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