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214603-19-7

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214603-19-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 214603-19-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,4,6,0 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 214603-19:
(8*2)+(7*1)+(6*4)+(5*6)+(4*0)+(3*3)+(2*1)+(1*9)=97
97 % 10 = 7
So 214603-19-7 is a valid CAS Registry Number.

214603-19-7Relevant articles and documents

Evolution of N-Heterocycle-Substituted Iodoarenes (NHIAs) to Efficient Organocatalysts in Iodine(I/III)-Mediated Oxidative Transformations

Boelke, Andreas,Nachtsheim, Boris J.

supporting information, p. 184 - 191 (2019/12/11)

The reactivity of ortho-functionalized N-heterocycle-substituted iodoarenes (NHIAs) as organocatalysts in iodine(I/III)-mediated oxidations was systematically investigated in the α-tosyloxylation of ketones as the model reaction. During a systematic catalyst evolution, it was found that NH-triazoles and benzoxazoles have the most significant positive influence on the reactivity of the central iodine atom. A further catalyst improvement which focused on the substitution pattern of the arene revealed a remarkable ortho-effect. By introduction of an o-OMe group we were able to generate a novel NHIA with a so far unseen catalytic efficiency. This new catalyst is not only easy to synthesize but also enabled the α-tosyloxylation of carbonyl compounds at the lowest reported catalyst loading of only 1 mol%. Finally, the performance of this iodine(I) catalyst was successfully demonstrated in intramolecular oxidative couplings of biphenyls and oxidative rearrangements. (Figure presented.).

Novel α-tosyloxylation of ketones catalyzed by the in situ generated hypoiodous acid from alkyl iodide

Zhang, Bijun,Han, Liuquan,Hu, Jiantao,Yan, Jie

, p. 5851 - 5854 (2015/01/16)

Using a catalytic amount of 1-iodopropane, a novel and efficient procedure has been developed for direct preparation of α-tosyloxyketones from ketones. In this protocol, 1-iodopropane is first oxidized into iodosylpropane, which decomposes to form the key

A facile synthesis of novel dihydroindeno[1,2-e][1,2,4]triazolo[3,4-b][1,3, 4]thiadiazines using HTIB

Prakash, Om,Aneja, Deepak Kumar,Wadhwa, Deepak,Kumar, Ravi,Arora, Sanjiv

experimental part, p. 566 - 570 (2012/08/27)

The synthesis of a series of 21 novel 3-alkyl/aryl-7/9-methyl-10,10a- dihydroindeno[1,2-e][1,2,4]triazolo[3,4-b][1,3,4]thiadiazines (4) has been achieved by the cyclocondensation between 4/6-methyl-2-tosyloxy-1-indanones (2) and 3-alkyl/aryl-4-amino-5-mercapto-1,2,4-s-triazoles (3). 4/6-Methyl-2- tosyloxy-1-indanones (2) were readily accessible through hypervalent iodine oxidation of 4/6-methyl-1-indanones using [(hydroxy)tosyloxyiodo]benzene (HTIB, Koser's reagent) in acetonitrile.

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