Diastereoselective synthesis of highly functionalized tetrahydropyrans from the cyclic vinyl acetal with aldehydes mediated by lewis acid catalyst
作者:Chan-Mo Yu、Won-Hyuk Jung、Ha-Soon Choi、Jongho Lee、Jeon-Koo Lee
DOI:10.1016/0040-4039(95)01771-9
日期:1995.11
A new method for constructing substituted tetrahydropyransfrom the conjunction of 6-ethylthio-3,4-dihydro-2-methoxy-2H-pyran with aldehydes in the presence of 10 mol % SnCl4 is described. This reaction is highly stereocontrolled and allows various functionalities to be incorporated at tetrahydropyran ring.