STEREOSELECTIVE 3,4-DIMETHYLENEOXEPANE COMPOUNDS SUBSTITUTED AND PROCESS FOR PREPARING THEM

摘要

PURPOSE: A stereoselectivity 3,4-die methylene jade force pane compound and a manufacturing method thereof are provided to be useful as intermediate which synthesizes the various multicyclic compounds. CONSTITUTION: A stereoselectivity 3,4-die methylene jade force pane compound is represented by chemical formula 1. A manufacturing method of the 3,4-die methylene jade force pane compound comprises the following step: performing Prins cyclization of solvents selected from diethyl ether and tetrahydrofuran under existence of trimethylsilyl trifluoro methansulfonate(TMSOTf) or tin tetrachloride(TiCl4) using aldehyde compound represented by chemical formula 3 as a starting material. The manufacturing method uses 1-2 equivalent weight range of Lewis acid based the alcoholates represented. The Prins reaction temperature is in a range of -78-30 deg. Celsius.