Regioselective Synthesis and Structure of New Spiro-isoquinolinedione Derivatives
摘要:
New spiro-isoquinolinoisoxazolines were prepared by regioselective 1,3-dipolar cycloaddition of 4-arylidene-isoquinoline-1,3-dione derivatives 1a-d with arylnitrile oxides 2e-g. In all cases, two regioisomers 3ae-dg and 4ae-dg were isolated with comparable ratios. Regioselectivity was established by unambiguous structural NMR assignments and X-ray diffraction analysis.
New N-Substituted (E)-4-Arylidene Isoquinoline-1,3-dione Derivatives: NMR Spectroscopic Investigation and Antibacterial Activity
摘要:
New N-substituted 4-arylidene-isoquinoline-1,3-dione derivatives were obtained as one geometrical isomer by aldol condensation of the appropriate aldehyde and the corresponding N-substituted homophthalimides. The structural elucidation of compounds 3a-h was established by infrared and NMR spectroscopy including H-1, C-13, CH CORR, and distortionless enhancement by polarization transfer measurements. Compounds 3d-h were evaluated for their antibacterial activity against some strains of bacteria using the disc diffusion method and microdilution tests.
New <i>N</i>-Substituted (<i>E</i>)-4-Arylidene Isoquinoline-1,3-dione Derivatives: NMR Spectroscopic Investigation and Antibacterial Activity
作者:Nafâa Jegham、Najeh Tka、Yakdhane Kacem、Béchir Ben Hassine
DOI:10.1080/00397911.2011.581792
日期:2012.11.15
New N-substituted 4-arylidene-isoquinoline-1,3-dione derivatives were obtained as one geometrical isomer by aldol condensation of the appropriate aldehyde and the corresponding N-substituted homophthalimides. The structural elucidation of compounds 3a-h was established by infrared and NMR spectroscopy including H-1, C-13, CH CORR, and distortionless enhancement by polarization transfer measurements. Compounds 3d-h were evaluated for their antibacterial activity against some strains of bacteria using the disc diffusion method and microdilution tests.
Regioselective Synthesis and Structure of New Spiro-isoquinolinedione Derivatives
作者:Béchir Ben Hassine、Nafâa Jegham、Yakdhane Kacem
DOI:10.3987/com-09-11874
日期:——
New spiro-isoquinolinoisoxazolines were prepared by regioselective 1,3-dipolar cycloaddition of 4-arylidene-isoquinoline-1,3-dione derivatives 1a-d with arylnitrile oxides 2e-g. In all cases, two regioisomers 3ae-dg and 4ae-dg were isolated with comparable ratios. Regioselectivity was established by unambiguous structural NMR assignments and X-ray diffraction analysis.