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2-phenyl-5-[4-phenyl-3-(toluene-4-sulfonyl)-but-3-en-1-ynyl]-1-p-tolyl-1H-pyrrole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

335645-75-5

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335645-75-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 335645-75-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,5,6,4 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 335645-75:
(8*3)+(7*3)+(6*5)+(5*6)+(4*4)+(3*5)+(2*7)+(1*5)=155
155 % 10 = 5
So 335645-75-5 is a valid CAS Registry Number.

335645-75-5Downstream Products

335645-75-5Relevant academic research and scientific papers

A new method for synthesizing a pyrrole ring and its application to the development of new π-systems

Takeda, Mineko,Matsumoto, Shoji,Ogura, Katsuyuki

, p. 231 - 236 (2007/10/03)

A new type of reaction was developed for the construction of a pyrrole ring. When 1,8-disubstituted 2,7-bis(p-tolylsulfonyl)-l,7-octadiene-3,6-diynes (6) was treated with an aniline derivative (7) in the presence of CuCl (1.6 equiv.) and CuCl2 (0.16 equiv.) in DMF (at 90 °C), one 2-sulfony-1-alken-3-yne part of 6 was converted to a 1-arylpyrrole skeleton in a reasonable yield.

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