作者:Page M. Penner、James R. Green
DOI:10.3390/molecules27103078
日期:——
The generation of ε-carbonyl cations and their reactions with nucleophiles is accomplished readily without transition metal cation stabilization, using the ε-bromide dienoate or dienone starting materials and GaCl3 or InCl3 catalysis. Arene nucleophiles are somewhat more straightforward than allyltrimethylsilane, but allyltrimethylsilane and propiophenone trimethysilyl enol ether each react successfully
使用ε-溴化物二烯酸酯或二烯酮起始材料以及GaCl 3 或InCl 3催化,无需过渡金属阳离子稳定化即可轻松实现ε-羰基阳离子的生成及其与亲核试剂的反应。芳烃亲核试剂比烯丙基三甲基硅烷更简单,但烯丙基三甲基硅烷和苯丙酮三甲基硅烯醇醚均在 InCl 3催化下成功反应。DFT 计算支持这些阳离子的活力。