Journal of Organic Chemistry 2005-06-10

Synthesis of isocoumarins via Pd/C-mediated reactions of o-iodobenzoic acid with terminal alkynes.

Venkataraman Subramanian, Venkateswara Rao Batchu, Deepak Barange, Manojit Pal

Index: J. Org. Chem. 70(12) , 4778-83, (2005)

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Abstract

The coupling reaction of o-iodobenzoic acid with terminal alkynes by using a catalyst system of 10% Pd/C-Et3N-CuI-PPh3 has been studied in a variety of solvents. 3-Substituted isocoumarins were formed in good yields and with good regioselectivity when the reaction was performed in EtOH.

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