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(E)-2-(4-bromophenyl)-1-(1-methyl-2-pyrrolyl)ethene is a synthetic organic compound characterized by a unique molecular structure. It features a double-bonded ethene backbone with a 4-bromophenyl group attached to the 2nd carbon and a 1-methyl-2-pyrrolyl group attached to the 1st carbon. The "E" configuration indicates that the substituents on the double bond are arranged in a trans (opposite) orientation. (E)-2-(4-bromophenyl)-1-(1-methyl-2-pyrrolyl)ethene is of interest in organic chemistry and may have potential applications in the synthesis of pharmaceuticals or materials science due to its specific structural features.

17559-71-6

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17559-71-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17559-71-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,5 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17559-71:
(7*1)+(6*7)+(5*5)+(4*5)+(3*9)+(2*7)+(1*1)=136
136 % 10 = 6
So 17559-71-6 is a valid CAS Registry Number.

17559-71-6Downstream Products

17559-71-6Relevant academic research and scientific papers

Cis-trans Isomerization of Styrylpyrroles by Stray Light

Lee, Chang, Kiu,Yu, Ji Sook,Kim, Young Hie

, p. 345 - 348 (2007/10/02)

A series of substituted N-methylstyrylpyrroles (H, p-Br, p-CN, o,p-diCl,m-CH3, m-CN, m-NO2) were prepared via the Wittig reaction of 1-methylpyrrole-2-carboxaldehyde and substituted benzyltriphenylphosphonium bromides.Both cis and trans isomers were found to be present in the reaction mixture and they were separable by column chromatography in a few cases (H, p-Br, m-CN, m-NO2).Photochemical isomerizations of cis-styrylpyrroles to trans isomers were observed when the substituents were o,p-diCl and m-NO2, while the opposite was the case with compounds having H, p-Br, m-CH3, m-CN.It was difficult to separate the cis and trans mixture of p-cyanostyrylpyrroles and the equilibrium ratio did not change under similar photochemical reaction conditions.

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