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2-Propenoic acid, 3,3'-(2,5-furandiyl)bis-, dimethyl ester, (2E,2'E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

72643-70-0

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72643-70-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72643-70-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,6,4 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72643-70:
(7*7)+(6*2)+(5*6)+(4*4)+(3*3)+(2*7)+(1*0)=130
130 % 10 = 0
So 72643-70-0 is a valid CAS Registry Number.

72643-70-0Relevant articles and documents

Palladium-Catalyzed Alkenylation of Aromatic Heterocycles with Olefins. Synthesis of Functionalized Aromatic Heterocycles

Fujiwara, Yuzo,Maruyama, Osamu,Yoshidomi, Michiaki,Taniguchi, Hiroshi

, p. 851 - 855 (1981)

Aromatic heterocycles such as furan, thiophene, benzofuran, benzothiophene, and N-acetylindole undergo facile palladium-assisted alkenylation with various olefins to produce mono- and/or dialkenylated heterocycles in high yield.With furan and thiophene, the reaction is regioselective, giving products substituted at the 2-position of the heterocycles, and is also stereoselective, giving E products when the substituent on the olefin is bulky.The reactions of benzofuran and N-acetylindole with olefins give cyclization products such as dibenzofuran and carbazole derivatives together with alkenylated products.The mechanistic implications with respect to these alkenylations are discussed.

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