作者:Roya Mirabdolbaghi、Travis Dudding
DOI:10.1016/j.tet.2011.12.040
日期:2012.2
(Ph3P)2PdIICl2 (bis(triphenylphosphine)palladium(II) dichloride) (2 mol %) catalyzed asymmetric Sakurai–Hosomi–Yamamoto allylation/Mizoroki–Heck reaction that affords C1-chiral 3-methylene-indan-1-ols with enantiomeric excess (ee) up to 80% is reported. Notably, this protocol allows for the use of various o-substituted benzaldehydes and allyltrimethoxysilane. It was also discovered that the presence of electron-rich
(R)-BINAP·Ag I F(2,2'-双(二苯基膦基)-1,1'-联萘基)(6-10 mol%)和(Ph 3 P)2 Pd II Cl 2(bis (三苯基膦)二氯化钯(II)(2 mol%)催化不对称Sakurai–Hosomi–Yamamoto烯丙基化/ Mizoroki–Heck反应,得到C 1-手性3-亚甲基-茚满-1-醇,对映体过量(ee)高达据报道80%。值得注意的是,此协议允许使用各种的ö-取代的苯甲醛和烯丙基三甲氧基硅烷。还发现富电子基团的存在对反应的对映选择性没有影响,而吸电子基团导致产物ee的腐蚀。