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116839-71-5

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116839-71-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 116839-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,8,3 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 116839-71:
(8*1)+(7*1)+(6*6)+(5*8)+(4*3)+(3*9)+(2*7)+(1*1)=145
145 % 10 = 5
So 116839-71-5 is a valid CAS Registry Number.

116839-71-5Downstream Products

116839-71-5Relevant articles and documents

A Highly Active System for the Metal-Free Aerobic Photocyanation of Tertiary Amines with Visible Light: Application to the Synthesis of Tetraponerines and Crispine A

Orejarena Pacheco, Julio Cesar,Lipp, Alexander,Nauth, Alexander M.,Acke, Fabian,Dietz, Jule-Philipp,Opatz, Till

, p. 5409 - 5415 (2016)

A highly efficient metal-free catalytic system for the aerobic photocyanation of tertiary amines with visible light is reported. The use of air as terminal oxidant offers an improved safety profile compared with pure oxygen, the used compact fluorescent lamp (CFL) light sources are highly economical, and no halogenated solvents are required. This system not only proves to be effective for a wide variety of trialkylamines, pharmaceuticals, and alkaloids but remarkably also allows the lowest catalyst loading (0.00001 mol % or 0.1 ppm) ever reported for an organic dye. Bruylants reactions and C-alkylation/decyanations were performed on the obtained α-aminonitriles to demonstrate the postfunctionalization of complex molecules. The catalytic system is furthermore applied in the short and effective syntheses of the alkaloids (±)-crispine A and the tetraponerines T7 and T8.

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