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Furan, 2,2'-(phenylmethylene)bis- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91681-68-4

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91681-68-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91681-68-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,8 and 1 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 91681-68:
(7*9)+(6*1)+(5*6)+(4*8)+(3*1)+(2*6)+(1*8)=154
154 % 10 = 4
So 91681-68-4 is a valid CAS Registry Number.

91681-68-4Relevant academic research and scientific papers

Unique versatility of Amberlyst 15. An acid and solvent-free paradigm towards synthesis of bis(heterocyclyl)methane derivatives

Singh, Kamaljit,Sharma, Shivali,Sharma, Amit

scheme or table, p. 34 - 37 (2011/10/17)

Bis(heterocyclyl)methanes, key intermediates for a variety of chemical, biochemical and material science relevant targets, have been obtained in a synthetically useful manner using Amberlyst 15 ion-exchange resin. This method promises versatility, cost-ef

The reaction of N-tosyl imines with heteroaromatic compounds: A new access to triheteroarylmethanes

Temelli, Baris,Tasgin, Dilek Isik,Unaleroglu, Canan

experimental part, p. 6765 - 6768 (2010/10/01)

Useful triheteroarylmethanes were prepared by the double Friedel-Crafts reaction of a wide variety of aromatic N-tosyl imines with furan, thiophene, and pyrrole in the presence of Cu(OTf)2 and Montmorillonite K-10 clay catalysts.

The reaction of nitrones with pyrroles and furan: An easy access to heteroaromatic hydroxylamines and bis(heteroaryl)alkanes

Berini, Christophe,Minassian, Frédéric,Pelloux-Léon, Nadia,Vallée, Yannick

, p. 8653 - 8656 (2007/10/03)

N-Benzylnitrones react with heteroaromatic compounds such as pyrroles or furan in the presence of hydrogen chloride. Either heteroaromatic N-benzylhydroxylamines, symmetrical or unsymmetrical 2,2′-bis(heteroaryl) alkanes could be selectively produced depe

MOLECULAR POLARIZABILITY OF ORGANIC COMPOUNDS AND THEIR COMPLEXES. XL. CONFORMATIONS OF SUBSTITUTED POLYFURYL(ARYL)METHANES IN DIOXANE SOLUTIONS

Movshovich, D. Ya.,Ivanova, N. A.,Bulgarevich, S. B.,Butin, A. V.,Kul'nevich, V. G.

, p. 2180 - 2186 (2007/10/02)

By Kerr-effect and dipole-moment methods the conformations of a number of substituted polyfuryl(aryl)methanes in dioxane solutions were studied, and it was shown that the most probable conformations of these systems are forms in which the heteroaryl nucle

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