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15117-33-6

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15117-33-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15117-33-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,1,1 and 7 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15117-33:
(7*1)+(6*5)+(5*1)+(4*1)+(3*7)+(2*3)+(1*3)=76
76 % 10 = 6
So 15117-33-6 is a valid CAS Registry Number.

15117-33-6Relevant articles and documents

One-pot Friedel-Crafts/Robinson-Gabriel synthesis of oxazoles using oxazolone templates

Keni, Manasi,Tepe, Jetze J.

, p. 4211 - 4213 (2005)

We report herein a one-pot synthesis of 2,4,5-trisubstituted oxazoles via a Friedel-Crafts/Robinson-Gabriel synthesis using a general oxazolone template. Treatment of the oxazolone template with a range of aromatic nucleophiles provided the highly substituted oxazoles in good yields.

I2/TBHP-mediated domino process: A convenient route to 1,3-oxazole derivatives

Feng, Cheng-Tao,Zhao, Ming,Ma, Shi-Tang,Qin, Xia

, p. 3835 - 3841 (2013/10/22)

A practical and simple synthesis of 2,5-disubstituted oxazoles was developed via a TBHP (tert-butyl hydroperoxide)/I2-mediated domino strategy. The reaction proceeds in series, giving rise to the formation of an intermolecular C-N bond and an intramolecular C-O bond, which yield oxazole derivatives simultaneously. The reaction gave the desired products from readily available substrates under mild conditions.

Metal-free dual sp3 C-H functionalization: I2- promoted domino oxidative cyclization to construct 2,5-disubstituted oxazoles

Gao, Qing-He,Fei, Zhuan,Zhu, Yan-Ping,Lian, Mi,Jia, Feng-Cheng,Liu, Mei-Cai,She, Neng-Fang,Wu, An-Xin

, p. 22 - 28 (2013/01/15)

An I2-promoted sp3 C-H functionalization has been developed for the synthesis of 2,5-disubstituted oxazoles from easily available methyl ketones and benzylamines without any metal and peroxide catalyst. This domino oxidative cyclization process involves the cleavage of C-H bond and the formation of C-N, C-O bonds.

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