Treatment of (2,3-epoxy-4-pentenyloxy)trialkylsilane with radical precursors such as triphenylgermane and α-halo carbonyl compounds in the presence of Et 3 B yields a, β-unsaturated aldehydes. The reaction involves β-scission of a secondary alkoxy radical that releases a siloxymethyl radical.
在 Et 3 B 存在下,用自由基前体(例如三苯基
锗烷和 α-卤代羰基化合物)处理(2,3-环氧-4-
戊烯氧基)三烷基
硅烷产生 a, β-不饱和醛。该反应涉及二级烷氧基的 β 断裂,从而释放出甲
硅烷氧基
甲基自由基。