Stereo- and enantioselective synthesis of (−)-(1R,3R,5S)-1,3-dimethyl-2,9-dioxabicyclo [3.3.1] nonane
作者:Robert Bloch、Matar Seck
DOI:10.1016/s0957-4166(00)82272-7
日期:1990.1
The title compound has been synthtised in an enantioselective and diastereoselective manner from an optically pure lactol obtained via an enzymatic hydrolysis.
标题化合物已经通过对映选择性和非对映选择性的方式从通过酶水解获得的光学纯的乳糖醇中合成。
Stereocontrolled reactions induced by a thermolabile group. Synthesis of optically active 1,3-diols.
of phosphonates with opticallyactive lactol 1 lead preferentially to one diastereoisomer. 2. Force field calculations conducted on one pair of diastereoisomers 2c and 2′c predict that these isomers must exist in different conformations of similar energies. 1H NMR data are in good agreement with these predictions. The dihydrofurans obtained by retro Diels-Alder reactions of 2 are easily transformed