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Palladium-Catalyzed Cascade Aryl Addition/Intramolecular Lactonization of Phthalaldehyde To Access 3-Aryl- and Alkenylphthalides

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journal contribution
posted on 03.09.2010, 00:00 by Zhishi Ye, Pengcheng Qian, Guanglei Lv, Fang Luo, Jiang Cheng
A palladium-catalyzed addition of arylboronic acids to phthalaldehyde, followed by an intramolecular lactonization to access 3-substituted phthalides, is described. The procedure tolerates a series of functional groups, such as methoxyl, fluoro, chloro, and trifluoromethyl groups. It represents a procedure for the synthesis of 3-substituted phthalides.

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