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Volume :1 Issue : 1 1974      Add To Cart                                                                    Download

â-AROYLPROPIONIC ACIDS. PART XXIII. CONVERSION OF â- (4-METHOXY-3-o-METHOXYPHENYL-PHENYL) - â-(4-METHYL-3-o-TOLYL-PHENYL)-, AND â-6-(1, 2, 3, 4-TETRA-HYDRONAPHTHYL) PROPIONIC ACIDS INTO POLYCYCLIC COMPOUNDS.

Auther : F. G. BADDARS, ABDEL.W AHHAB (MRS.), AND E. EL-SAWI (M RS.)

Department of Chemistry, Kuwait University, Kuwait

 

Abstract.

 

Ethyl Y-(4-Methoxy-3-o-methoxyphenyl-pheny1)-, Y -4-methyl-3-o-tolyl-pheny1)- and Y-6-(1,2.3,4-tetrahydronaphthyl) butyrates, prepared by the reduction and esterification of the corresponding keto-acids, were condensed with ethyl oxalate in the presence of potassium ethoxide. The formed oxalyl derivatives were cyclised with 70% H SO4 to give dihydronaphthalene-1,2-dicarboxylic anhydride derivatives and a hexahydrophenanthrene-3,4-dicarboxylic anhydride, respectively.

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