2,2,8,8-hexamethyl-4,6-bis-methylene-10-oxo-2,3,4,6,7,8,9,10-octahydro-1H-pyrano[3,2-c;5,6-c']dipyridinediium; dichloride 在
palladium on activated charcoal
氢气 作用下,
以
溶剂黄146 为溶剂,
生成 2,2,4,6,8,8-hexamethyl-10-oxo-2,3,4,6,7,8,9,10-octahydro-1
H-pyrano[3,2-
c;5,6-
c']dipyridinediium; dichloride