Synthesis of cis- and trans-2,4,8-Triaryl-5-oxo-4H-5,6,7,8- tetrahydrobenzopyrans
Wang Jinjun;Han Guangfan;Wu Xuran;Yin Jungang;Zhao Yan
Chin. J. Org. Chem. . 2003, (8): 827 -831 .