作者:José L. Garcío Ruano、Araceli Fuerte、M.Carmen Maestro
DOI:10.1016/0957-4166(94)80107-x
日期:1994.8
The synthesis of enantiomerically pure sulfinyi oxoacids HO2CCH2(CH2)nCOCH(R)SOTol (n=1 and 2, R=H, CH3), and their stereoselective reduction with DIBAL catalysed by ZnBr2 are reported. The resulting hydroxysulfoxides were cyclized in situ under acidic conditions yielding high yields of the corresponding γ- and δ-lactones in high enantiomeric purity.
报告了对映体纯的亚磺酰基含氧酸HO 2 CCH 2(CH 2)n COCH(R)SOTol(n = 1和2,R = H,CH 3)的合成,以及用ZnBr 2催化的DIBAL立体选择性还原。将得到的羟基亚砜在酸性条件下原位环化,以高对映体纯度得到相应的γ-和δ-内酯。