Efficient heterogeneous catalytic intramolecular Tishchenko reaction of o-phthalaldehyde to phthalide with alkaline earth oxides.
The heterogeneous catalytic systems realized by alkaline earth oxides are successfully applicable to the highly efficient intramolecular Tishchenko lactonization of o-phthalaldehyde to phthalide.
Seki
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Center for Advanced Research of Energy Technology, Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo 060-8628, Japan.
Hattori
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