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52191-14-7

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52191-14-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52191-14-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,1,9 and 1 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 52191-14:
(7*5)+(6*2)+(5*1)+(4*9)+(3*1)+(2*1)+(1*4)=97
97 % 10 = 7
So 52191-14-7 is a valid CAS Registry Number.

52191-14-7Relevant articles and documents

Sodium Bromide-Catalyzed Oxidation of Secondary Benzylic Alcohols Using Aqueous Hydrogen Peroxide as Terminal Oxidant

Komagawa, Hiromi,Maejima, Yukako,Nagano, Takashi

supporting information, p. 789 - 793 (2016/03/09)

A halide salt, hydroperoxide and AcOH catalyst system was applied to the oxidation of secondary benzylic alcohols. This simple system can be applied to a variety of secondary benzylic alcohols and scaled up for gram-scale preparation. High secondary benzylic alcohol selectivity of the present method is demonstrated in hydroxyketone synthesis. Based on several experimental results, a catalytic cycle for our oxidation is proposed.

Structure-based design of thienobenzoxepin inhibitors of PI3-kinase

Staben, Steven T.,Siu, Michael,Goldsmith, Richard,Olivero, Alan G.,Do, Steven,Burdick, Daniel J.,Heffron, Timothy P.,Dotson, Jenna,Sutherlin, Daniel P.,Zhu, Bing-Yan,Tsui, Vickie,Le, Hoa,Lee, Leslie,Lesnick, John,Lewis, Cristina,Murray, Jeremy M.,Nonomiya, Jim,Pang, Jodie,Prior, Wei Wei,Salphati, Laurent,Rouge, Lionel,Sampath, Deepak,Sideris, Steve,Wiesmann, Christian,Wu, Ping

scheme or table, p. 4054 - 4058 (2011/08/06)

Starting from thienobenzopyran HTS hit 1, co-crystallization, molecular modeling and metabolic analysis were used to design potent and metabolically stable inhibitors of PI3-kinase. Compound 15 demonstrated PI3K pathway suppression in a mouse MCF7 xenogra

An efficient synthetic strategy for geometrically pure symmetrical and unsymmetrical hydroxystilbenes via McMurry coupling

Mayekar, Narayan V.,Chattopadhyay, Subrata,Nayak, Sandip K.

, p. 2041 - 2046 (2007/10/03)

Intramolecular reductive deoxygenation of ethylenedioxy tethered symmetrical and unsymmetrical aromatic bis(carbonyl) ethers with the low-valent titanium (LVT) reagent (TiCl4-Zn-THF) yielded chromatographically separable E/Z-isomers of corresponding cyclic stilbenes which were further dealkylated to obtain geometrically pure hydroxystilbenes. The intramolecular McMurry coupling of the tethered bis(carbonyl) ethers with TiCl 3-Li-THF, on the other hand, directly provided both symmetrical and unsymmetrical phenanthrenes via in situ dealkoxylation of the phenol function. This is the first report of the synthesis of unsymmetrical phenanthrenes by the LVT route.

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