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5-phenyl-3-(phenylethynyl)pent-4-yne-2,3-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

309290-18-4

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309290-18-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 309290-18-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,9,2,9 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 309290-18:
(8*3)+(7*0)+(6*9)+(5*2)+(4*9)+(3*0)+(2*1)+(1*8)=134
134 % 10 = 4
So 309290-18-4 is a valid CAS Registry Number.

309290-18-4Downstream Products

309290-18-4Relevant academic research and scientific papers

Gold-Catalyzed Synthesis of 1-(Furan-3-yl)-1,2-diones

Zhang, Bing,Wang, Tao,Zhang, Zunting

, p. 11644 - 11654 (2017)

A gold-catalyzed synthesis of an important building block, 1-(furan-3-yl)-1,2-diones, from easily available starting materials under mild reaction conditions was reported. Preliminary mechanistic investigation indicated that water was involved as a reacta

Expedient syntheses of β-iodofurans by 5-endo-dig cyclisations

Bew, Sean P.,El-Taeb, Gamila M. M.,Jones, Simon,Knight, David W.,Tan, Wen-Fei

, p. 5759 - 5770 (2008/09/17)

5-endo-dig cyclisations of 3-alkyne-1,2-diols using iodine as the electrophile proceed smoothly to deliver excellent yields of the corresponding β-iodofurans. The necessary precursors are available from a number of different approaches, notably regioselec

Practical alternatives for the synthesis of β-iodofurans by 5-endo-dig cyclisations of 3-alkyne-1,2-diols

El-Taeb, Gamila M.M.,Evans, Ann B.,Jones, Simon,Knight, David W.

, p. 5945 - 5948 (2007/10/03)

Iodocyclisations of 3-alkyne-1,2-diols, obtained from acetylides and α-hydroxy-ketones or esters, give generally excellent yields of β-iodofurans by 5-endo-dig cyclisation followed by dehydration.

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