我的swern 氧化出了问题，帮帮我啊！！！？ 通用方法：from 2.2 equivalents of dry dmso are slowly added over a cold stirred ca.0.2–0.9 m solution of 1.1 equivalents of oxalyl chloride in dry ch2cl2. after the evolution of gas ceased—ca. 1–20 min—,e a ca. 0.1–0.5 m solution of 1 equivalent of the alcohol in dry ch2cl2 is slowly added to the resulting cold solution of activated dmso. after 15 min 5 equivalents of triethylamine are added. after 5 to 120 min—typically 5 min—the reaction is left to reach room temperature. 注意：滴加草酰氯的时候，温度-60以下；底物如果含氮化合物，可能要增加氧化剂的当量。 查看更多
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