Jisho

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反応
Wikipedia definition
1. Simmons–Smith reactionThe Simmons–Smith reaction is an organic cheletropic reaction in which a carbenoid reacts with an alkene to form a cyclopropane. It is named after Howard Ensign Simmons, Jr. and R. D. Smith. Because the methylene unit is delivered to both carbons of the alkene simultaneously, the configuration of the double bond is preserved in the product and the reaction is stereospecific. Thus, cyclohexene, diiodomethane, and a zinc-copper couple yield norcarane (bicycloheptane).
Read “Simmons–Smith reaction” on English Wikipedia
Read “シモンズ・スミス反応” on Japanese Wikipedia
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