• Synthesis, reactions and characterisation of some new β-ketoester boroacetates

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      https://www.ias.ac.in/article/fulltext/jcsc/093/02/0177-0182

    • Keywords

       

      β-ketoester boroacetates; spectral data; tetra-coordinate boron

    • Abstract

       

      The reactions of methyl esters of aroyl pyruvic acids (aroyl = benzoyl,p-chlorobenzoyl,p-bromobenzoyl andp-methylbenzoyl) with boric acid in acetic anhydride solution yield derivatives of the general formula (OAc)2B [OC(R)CHCOCOOMe] (R = C6H5,p-ClC6H4,p-BrC6H4 andp-CH3C6H4). The reactions of these derivatives with protic ligands such as glycols,o-aminophenol ando-aminothiophenol have also been carried out. These derivatives have been characterised by elemental analysis and molecular weight measurements. The tetra-coordination around central boron atom has been established byir,1Hnmr and 11 Bnmr spectral evidence.

    • Author Affiliations

       

      Yashpal Singh1 A K Rai1

      1. Chemical Laboratories, University of Rajasthan, Jaipur - 302 004, India
    • Dates

       
  • Journal of Chemical Sciences | News

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