Synthesis and characterization of (cyclopentadienyl)titanium(IV) complexes of 1,3-dihydro-l,3-dioxo-ɑ-substituted)-2H-isoindole 2-acetates

Abstract

Complexes having the general formulae (C₅H₅)₂TiCI(L), (C₅H₅)TiCI(L)₂ and (C₅H₅)Ti (L)₂, have been synthesized by the reactions of N-protected amino acids (LH) <img src="http://www.niscair.res.in/jinfo/equation104.gif" alt="" border="0" />, CH(R).CO₂H (where R = - H, - CH(CH₃)₂, - CH₂C₆H₅, - CH₂CH₂SCH₃ and - CHR - = - CH₂CH₂- ) with ti-tanocene dichloride in the presence of triethylamine in refluxing tetrahydrofuran. These derivatives have been characterized by elemental analyses, molecular weight measurements, and IR, ¹H and ¹³C NMR spectral studies.