The reaction of alkenyl sulfones with aryltitanium triisopropoxide (ArTi(OPr-i )3) in the presence of 3 mol % of [Rh(OH)((S)-binap)]2 in THF at 40 degrees C gave high yield of cine-substitution products. The catalytic cycle was established by deuterium-labeling studies, and it was applied to catalytic asymmetric synthesis of allylarenes which proceeds with over 99% enantioselectivity.
烯基砜与芳基三
异丙醇钛 (ArTi(OPr-i )3) 在 3 mol% [Rh(OH)((S)-binap)]2 的 THF 存在下在 40°C 下反应,得到高产率的电影——替代产品。通过
氘标记研究建立了催化循环,并将其应用于烯丙基
芳烃的催化不对称合成,其对映选择性超过 99%。