Synthesis of axially chiral gold complexes and their applications in asymmetric catalyses

• Yin-wei Sun,
• Qin Xu and
• Min Shi

Beilstein J. Org. Chem. 2013, 9, 2224–2232, doi:10.3762/bjoc.9.261

• product in moderate yields and up to 29% ee. Keywords: asymmetric gold catalysis; chiral Au catalysts; gold-π interaction; NHC gold complex; Introduction After the long-held assumption of the non-reactivity of gold complexes, numerous reactions catalyzed by gold complexes have emerged in the last 2

• . However, chiral gold complexes [30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45], especially chiral NHC–gold complex-catalyzed asymmetric reactions [46][47][48][49][50][51][52][53] are still uncommon. Very few efficient chiral NHC–gold catalysts have been known up to the year of 2013. So

When cyclopropenes meet gold catalysts

• Frédéric Miege,
• Christophe Meyer and
• Janine Cossy

Beilstein J. Org. Chem. 2011, 7, 717–734, doi:10.3762/bjoc.7.82

• dependent and did not operate in the presence of the NHC–gold complex [(IPr)AuOTf]. Thus, when cyclopropene 8 was treated with a stoichiometric quantity of EtOH in the presence of the latter catalyst (5 mol %), the tertiary allylic ether 9a was obtained with high regioselectivity (>99:1), but the yield (51