Regioselective epoxide ring opening. Steroselective synthesis of a tetrahydropyran ring
作者:Michelangelo Gruttadauria、Renato Noto、Serena Riela
DOI:10.1002/jhet.5570350414
日期:1998.7
were the stereoselective epoxidation of an allylic alcohol and the regioselective epoxide ring opening by lithium aluminum hydride. The regio and stereoselective synthesis of a trihydroxyselenide and a trihydroxysulfide is also described. The latter compounds are not suitable for cyclization to tetrahydrofuran ring.
描述了具有相邻的带有烷氧基的立体异构中心的2-取代的四氢吡喃的立体选择性合成。该合成的关键步骤是烯丙基醇的立体选择性环氧化和氢化铝锂的区域选择性环氧化物开环。还描述了三羟基硒化物和三羟基硫化物的区域和立体选择性合成。后者化合物不适合环化成四氢呋喃环。