Tetrakis (1-methylcyclopropyl) ethylene in four steps from α-methyl-γ-butyrolactone
作者:Gerald Böhrer、Rudolf Knorr
DOI:10.1016/0040-4039(84)80102-1
日期:1984.1
A short and efficient synthesis of bis(1-methylcyclopropyl)ketone (=6}) via the spiro-acetal =4} from α-methyl-γ-butyrolactone (=1}) been found, and reductivedimerization of =6} by McMurry coupling yields tetrakis(1-methylcyclopropyl)ethylene (=7}) in competition with ring-opened products (=8} and (=9}).