This article traces the historical claim of curly arrows in reactions by Robert Robinson and Christopher Ingold, revealing the competitive dynamics in early chemistry.
In 2012, I wrote a story of the first ever reaction curly arrows, attributed to Robert Robinson in 1924. At the time there was a great rivalry between him and another UK chemist, Christopher Ingold, with the latter also asserting his claim for their use.
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Henry S. Rzepa (2018) studied this question.
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