Cyclic Aryl Ethers, Thioethers and Amines, and ...



Title Cyclic Aryl Ethers, Thioethers and Amines, and method for preparation
Start page 15
Date 2000
Abstract Cyclic aryl ethers, thioethers or amines, and methods for synthesis are disclosed. These cyclic aryl compounds are synthesized by combining a first dinucleophile with a substituted benzene metallized electron-withdrawing complex, having halo or nitro substituent groups, to form a linear bimetallized aryl compound. The linear bimetallized aryl compound is then reacted with a second dinucleophile to form a cyclic bimetallized aryl compound. The metallized electron-withdrawing moieties are then removed from said cyclic bimetallized aryl compound by photolytic demetallation to form a cyclic aryl compound having the formula wherein: X1 and X3 are the same or different and each is a alkyl, heteroalkyl, heterocyclic or aromatic group having up to 6 conjugated rings, optionally substituted; X2 is benzene n1 and n3 are the same or different and each is O, S or N; and n4 is H or lower alkyl.

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