Friedel-Crafts acylation of 2-trimethylsilylnorbornene. Effect of acyl group on the position of attack
作者:Gopalpur Nagendrappa、Noor Shahina Begum
DOI:10.1016/s0040-4020(99)00402-0
日期:1999.6
The acylation of 2-trimethylsilylnorbornene 1 in the presence of aluminiumchloride gives minor quantities of the expected 2-norbornenyl ketones 4. The formation of 3 and 5 as major products indicates that either α-or β-attack takes place predominantly depending on the nature of the acyl group, and the β-silicon effect is not a decisive factor. The β-silyl cation intermediate 2 mainly leads to nortricyclyl