反应条件
1: 5,6,8,9-tetrahydro-7-phenyldibenzo<c,h>xanthenylium tetrafluoroborate / CH2Cl2 / 400 h / 20 °C 2: bromine, 2-methylbut-2-ene, MeCH2(Me)C=CH2 / CHCl3; CH2Cl2 / -12 °C View Scheme
参考文献
Katritzky, Alan R.; Lloyd, Jeremy M.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1982 , # 10 p. 2347 - 2352