Palladium-catalysed oligocyclisations of 2-bromododeca-1,11-diene-6-ynes
作者:Hans Henniges、Frank E Meyer、Ute Schick、Frank Funke、Philip J Parsonb、Armin de Meijere
DOI:10.1016/0040-4020(96)00641-2
日期:1996.8
Variously substituted 2-bromo-dodeca-1,11-diene-6-ynes under palladium-catalysis undergo (i) biscyclisation followed by (a) 6π-electrocyclic rearrangement to give [1,2:3,4]bisannelated cyclohexadiene derivatives (, , , , , 27 → 28, E,E-37 → 38+39, 42 → 43, (b) Diels-Alder reaction to bicyclo[4.1.0]hept-2-enes (E/Z-54 → 52), or (ii) tetracyclisation to a tetracyclo[6.3.1.01,8.02,6]dodec-2-ene (58 →