Two efficient, simple, cheap, and environmentally benign preparations of cyclopropanes were achieved. One is the formation via 3-exo-trig manner from various electron-deficient 2-iodoethyl-substituted olefins with zinc powder in a mixture of t-butyl alcohol and water, and the other is the formation via 3-exo-tet manner from various 1,3-dihalopropanes with zinc powder in ethanol.

中文翻译：

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用锌粉方便地由2-碘乙基取代的烯烃和1,3-二卤丙烷制备环丙烷

实现了两种高效，简单，廉价且对环境无害的环丙烷制备方法。一个是通过3-形成外切-三角函数中的混合物从与锌粉各种缺电子2-碘乙基-取代的烯烃的方式吨丁基醇和水，另一种是通过3-形成外切- TET从方式各种1,3-二卤丙烷与锌粉的乙醇溶液。