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Kagan也发现在反应中加入催化量的氯化铁可以明显地减少反应时间,而这一方法在后来被G.A. Molander进一步的研究发展。 在1984年G.A.Molander第一次报道了在分子内发生的此反应,ω-碘代酯在二碘化钐和催化量的三价铁盐的存在下发生分子内的酯基取代反应,并进一步发生此反应生成复合多环脂烃。
华盛顿 — 罗伯特·卡根(Robert Kagan)是美国历史学者、外交政策评论员。他近日在《华尔街日报》撰文警告中国,“挑战美国会是一个历史错误 ...
Elena Kagan will become the fourth woman to sit on the court when its new term begins October 4. It took more than eighty meetings and seventeen hours of testimony for the new justice to gain her ...
艾利娜.卡根星期六将宣誓成为美国最高法院的第三位女性大法官。奥巴马总统星期五为这项即将到来的就职表示祝贺。奥巴马总统在白宫东厢接待厅 ...
President Obama described Elena Kagan as "a trailblazer for women." She is the first woman to serve as solicitor general of the United States and earlier, as head of Harvard Law School. Elena Kagan ...
President Obama has nominated Elena Kagan for Justice of the United States Supreme Court on the basis of an academic publication record, which might give Facebook X(推特) Instagram YouTube Discord RSS ...