?DEVELOPMENT OF CATALYST FROM NATURAL CLAYS FOR FRIEDEL CRAFTS ALKY- LATION AND NEW SYNTHESIS OF 9,10 DIHYDROANTHRACENE

Authors

  • A Ehsan PCSIR Laboratories Complex, Shahrah-e-Jalaluddin Roomi, Lahore 54600, Pakistan
  • A H Ahsan PCSIR Laboratories Complex, Shahrah-e-Jalaluddin Roomi,Lahore 54600, Pakistan
  • Abdul Mannan PCSIR Laboratories Complex, Shahrah-e-Jalaluddin Roomi, Lahore 54600, Pakistan
  • M Zafar Iqbal PCSIR Laboratories Complex, Shahrah-e-Jalaluddin Roomi, Lahore 54600, Pakistan

Keywords:

Clay catalyst, Synthesis of9, 10 dihydroanthracene.

Abstract

Catalytic activityofthenaturalkaoliniticclaysofPakistancontainingtransitionmetals(FeandTi) hasbeenexamined for
the synthesis of 9, 10 dihydroanthracene [I]. The chemical composition of these clays has been determined with and
without activation andXRF analysis hasbeencarriedout. Catalyticactivityoftheseclayshasalso beenevaluated for the
synthesis of 9, 10dihydroanthracene [I] of low temperature (60-100°C),This method has been standardised, which is a
simple method as compared to the methods reported in the literature, The benzylation of phenol with benzyl chloride,
resulting in the [ormation of ortho [lI]and para [Ill] hydroxydiphenyl methaneproceeds very smoothly in the water bath
to yield 100%of the product. Clays containing (Ti) and Fe) are most effective for the alkylation with benzyl chloride,
Leachingofalkalinecationsresultsinthegenerationoflarge amountoftransitionmetalcations,This improvesthecatalytic
effect of the acid treated clays,

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Published

1999-06-21

How to Cite

Ehsan, A., Ahsan, A. H., Mannan, A., & Iqbal, M. Z. (1999). ?DEVELOPMENT OF CATALYST FROM NATURAL CLAYS FOR FRIEDEL CRAFTS ALKY- LATION AND NEW SYNTHESIS OF 9,10 DIHYDROANTHRACENE. Biological Sciences - PJSIR, 42(3), 156–160. Retrieved from http://v2.pjsir.org/index.php/biological-sciences/article/view/2141