Jian-Liang Ye, Li-Ning Chen, Zhao-Ke Jin, Pei-Qiang Huang
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引用次数: 0
Abstract
A facile and versatile synthesis of 6 H -chromeno[4,3-b ]quinolines has been achieved through triflic anhydride/2-fluoropyridine (Tf 2 O/2-F-Pyr)-promoting domino intramolecular cycloaddition reactions of salicylic-acid-derived N -phenyl- ortho -propynyloxy benzamides under mild, and metal-free conditions. This protocol is efficient, scalable, and well compatible with a broad scope of substrates bearing halogens, trifluoromethyl
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