Aromatic heteroannulation via ortho lith
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Mukta S. Hendi; Kenneth J. Natalie Jr.; Shivakumar B. Hendi; James A. Campbell;
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Article
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1989
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Elsevier Science
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French
β 281 KB
N-acyl-2-bromobenzamides participate in metal-halogen exchange with n-BuLi to form N-acyl-%lithiobenzamides, which undergo cyclization to afford 3alkylidenephthalimidines. The pioneering work of Parhaml first demonstrated that certain ortho-substituted aryllithuim reagents 2 can undergo cyclization