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In the presence of ClCO2Et, the use of CuI in MeNO2 efficiently catalyzed the Reissert‐type acylation of isoquinoline derivatives with acylzirconocene chlorides. In the reaction of quinolines with acylzirconocene chlorides, the choice of catalyst and solvent was crucial to the regioselective formation of adducts. The cationic RhI‐catalyzed reaction in MeNO2 preferentially afforded 1,2 adducts. On the other hand, the CuI‐catalyzed reaction in CH2Cl2 preferentially afforded 1,4 adducts.

The piezoelectric admittance measurements of montmorillonite/poly(vinyl alcohol) (PVA) composite film-coated quartz crystal oscillators were performed in air dried over silica gel, in an atmosphere of moisture with 100% relative humidity at 25 °C and in contact with Na2SO4 aqueous solutions. By use of the electrical equivalent circuit model conventionally proposed for a piezoelectric quartz crystal, the relevant circuit parameters; resistance R, inductance L, and capacitance C were evaluated as a function of the Na2SO4 concentration (0.01–1.0 M (1 M = 1 mol dm−3)). R was almost constant above ca. 0.35 M and increased with decreasing the concentration in the lower concentrations, while L and C were almost independent of the concentration. On the basis of the electrolyte concentration dependence of R, the structural change of the clay/PVA composite film due to swelling with the electrolyte is discussed in comparison with the results for the clay film.

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Reissert-Type Acylation with Acylzirconocene Chloride Complexes. -The title reaction is used for the acylation of isoquinoline and quinoline derivatives. The regioselectivity of the reaction can be controlled by the choice of catalyst. -(SAITO*, A.; SAKURAI, H.; SUDO, K.; MURAI, K.; HANZAWA, Y.; Eur. J. Org. Chem. 2013, 32, 7295-7299, http://dx.doi.org/10.1002/ejoc.201301264 ; Div. Appl. Chem., Inst. Eng., Tokyo Univ. Agric. Technol., Koganei, Tokyo 184, Japan; Eng.) -Roessler 16-176