Studies on Flavans. 1. Facile Synthesis of (±)-7-Hydroxy-3', 4'-methylenedioxyflavan and (±)-4'-Hydroxy-7-methoxyflavan by a BF3⊙ Et2O-Mediated Pyran Cyclization
Y Li, J Yang, WZ Li, L Hou, J Xue…
文献索引：Ahluwalia, V. K.; Arora, K. K.; Mukherjee, Keya Synthesis, 1984 , # 4 p. 346 - 348
... Et 2 O)-mediated benzopyran formation in an aprotic polar solvent, as illustrated in the total synthesis of the ... sequence as described above, starting from the chalcone 4, compound 2 was synthesized as a ... Chemistry Letters (1984), (5), 689-92CODEN: CMLTAG ; ISSN:0366-7022 ...
