Novel Synthesis of 2-Amino-3-ethoxycarbonyl Benzopyrans with Onium Salt as Soluble Support

ZHANG Li, LU Cui-fen, YANG Gui-chun and CHEN Zu-xing*

ZHANG Li, LU Cui-fen, YANG Gui-chun and CHEN Zu-xing*

高等学校化学研究 . 2011, (3): 435 -440 .