摘要：

Olefins such as 2,3-dimethyl-2-butene (I), cis- and trans-stilbene (IV), α-terpinene (VI), 1,1-dibromo-4-methylpenta-1,3-diene (VIII), and trans-anethole (XI) are cyclopropanated with ethyl diazoacetate (II) in the presence of tris(bromophenyl)aminium hexachloroantimonates.

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