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187409-10-5

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187409-10-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 187409-10-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,4,0 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 187409-10:
(8*1)+(7*8)+(6*7)+(5*4)+(4*0)+(3*9)+(2*1)+(1*0)=155
155 % 10 = 5
So 187409-10-5 is a valid CAS Registry Number.

187409-10-5Relevant articles and documents

A practical synthesis of 3-chloro-α-bromostyrene starting from 3- chloroethylbenzene

Tanaka, Ken,Hosokawa, Akemi,Tanigawa, Yuichiro

, p. 211 - 218 (1999)

3-Chloro-α,β-dibromoethylbenzene was prepared via I2 catalyzed bromination of 3-chloro-α-bromoethylbenzene. It was dehydrobrominated with aqueous NaOH in the presence of n-Bu4N+HSO4- to give 3-chloro-

Visible-Light-Induced Regioselective C(sp3)-H Acyloxylation of Aryl-2 H-azirines with (Diacetoxy)iodobenzene

De, Aramita,Santra, Sougata,Hajra, Alakananda,Zyryanov, Grigory V.,Majee, Adinath

supporting information, p. 11735 - 11740 (2019/10/02)

A visible-light-promoted regioselective coupling of C(sp3)-H of aryl-2H-azirine and (diacetoxy)iodobenzene has been reported. Rose Bengal as an organophotoredox catalyst has been used in this reaction. The reaction proceeds under aerobic condition at room temperature. A variety of aryl-2H-azirines gives the corresponding acyloxylated azirines under this reaction conditions. The reaction goes through a radical pathway. The protocol is also applicable on gram-scale synthesis.

Visible-Light Photoredox Catalyzed Three-Component Cyclization of 2H-Azirines, Alkynyl Bromides, and Molecular Oxygen to Oxazole Skeleton

Chen, Lili,Li, Hongji,Li, Pinhua,Wang, Lei

supporting information, p. 3646 - 3649 (2016/08/16)

A novel three-component cyclization of 2H-azirines, alkynyl bromides, and molecular oxygen under visible-light photoredox catalysis at room temperature has been developed, which provides a direct approach to a wide range of substituted oxazoles in moderate to good yields.

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