An alternative stereoselective synthesis of the macrocyclic fragrances (R)-12-methyltridecanolide and (S)-muscolide by means of an asymmetric catalytic conjugate addition/Baeyer–Villiger oxidation
作者:Patrizia Scafato、Augusto Larocca、Carlo Rosini
DOI:10.1016/j.tetasy.2006.09.007
日期:2006.10
alternative catalytic, highly enantioselective approach to (R)-12-methyltridecanolide and (S)-muscolide, that is, chiral macrocyclic lactones which are good musk odorants. In fact, they can be efficiently prepared by a sequence of reactions consisting of a catalytic asymmetric conjugated addition of dimethylzinc to suitable α,β-unsaturated enones followed by a Baeyer–Villiger oxidation. Interestingly, high
我们在本文中显示了对(R)-12-甲基十三烷醇化物和(S)-麝香内酯的另一种催化的,高对映选择性的方法,即手性大环内酯是良好的麝香气味。实际上,可以通过一系列反应来有效地制备它们,包括将二甲基锌催化不对称共轭加成到合适的α,β-不饱和烯酮中,然后进行Baeyer-Villiger氧化。有趣的是,借助于“对位”亚磷酰胺L1,在不对称共轭物添加中获得了高对映体过量(最高达92%)。