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Methanone, phenyl(6,7,8,9-tetramethyl-3-dibenzofuranyl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91786-91-3

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91786-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91786-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,8 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91786-91:
(7*9)+(6*1)+(5*7)+(4*8)+(3*6)+(2*9)+(1*1)=173
173 % 10 = 3
So 91786-91-3 is a valid CAS Registry Number.

91786-91-3Relevant academic research and scientific papers

Solvent Effects on Isomer Distributions and Relative Rates in Friedel-Crafts Benzylation and Benzoylation of Dibenzofuran Derivatives

Keumi, Takashi,Nakamura, Masatoshi,Kitamura, Masao,Tomioka, Naoto,Kitajima, Hidehiko

, p. 909 - 914 (2007/10/02)

The positional reactivity order in Friedel-Crafts benzoylation and benzylation of dibenzofuran (DBF) is found to be 2 > 3 > 1 >= 4.Both the partial rate factors and the positional selectivity for the benzylation of DBF are very low compared with those of

Solvent Effects on Isomer Distributions in Acylation of 1,2,3,4-tetramethyldibenzofuran : Regiospecific Solvation of the Intermediate ?-Complex

Keumi, Takashi,Yagi, Yumiko,Kato, Yoko,Taniguchi, Rikio,Temporin, Makoto,Kitajima, Hidehiko

, p. 799 - 806 (2007/10/02)

A large solvent effect is observed in Friedel-Crafts acylation of 1,2,3,4-tetramethyldibenzofuran (TMD). 8-Acyl-TMD is by far the major product in nitrohydrocarbons while 7-acyl-TMD is favoured in chlorohydrocarbons and is the major product in many cases.

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