Asymmetric synthesis of trans-fused octahydro pyrano-pyran subunits related to marine polyether toxins
作者:Didier Desmaële、Gilles Pain、Jean d'Angelo
DOI:10.1016/s0957-4166(00)82186-2
日期:1992.7
Stereoselective reductions of compound 5, by means of(+)-B-chlorodiisopinocampheylboraned led to 6 with a good selectivity. Intramolecular hetero-Michael cyclization of 13 with NaH in HMPA gave 14 with an excellent selectevity.
借助于(+)-B-氯二异opinocampheylboraned的化合物5的立体选择性还原得到具有良好选择性的6。在HMPA中用NaH对13进行分子内异Michael环化,得到14的选择性很好。