神马品牌网四五快读 当当:化学专业英语的翻译
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However, few of them are of broad scope. Most of them are only well suited for the preparation of specific classes of 1,2-diamines such as primary, secondary, or tertiary diamines, or only syn or anti compounds. Other ones only allow the formation of symmetrical 1,2-diamines.A more general way to prepare vicinal diamines selectively is thus still sought after. Considering the topical development of catalytic enantioselective synthesis, one can envision that asymmetric diamination of alkenes might be a convenient response to this problem. Other solutions will probably then be designed, since, as can be seen from the many examples of syntheses summarized in this review, one thing organic chemists certainly do not lack is imagination.
然而，他们中的少数的个是宽广范围。他们大部份只有很好地为特定班级的准备被适合 1,2 二元氨化合物的如此如提名候选人的预选会，第二次的或三重的 二元氨化合物, 或只有 syn 或者反对者混合。 其他的只允许形成对称的 1,2 二元氨化合物 的。选择性地准备附近的 diamines 的一个比较一般的方法仍然如此追求。 考虑接触反应 enantioselective 综合的谈论发展,一能想像 alkenes migh 的那一不对称 diamination
楼上的是机器翻译的