Deviating behaviour of bromocarbethoxycarbene in cycloaddition reactions |
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| Authors: | B Giese WH Mehl WB Lee |
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| Institution: | Institut für Organische Chemie und Biochemie der Technischen Hochschule, Petersenstr. 22, D-1600 DarmstadtWest Germany |
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| Abstract: | The effect of Me substituents at alkenes 4 on the rates and activation parameters of cycloaddition reactions of bromocarbethoxycarbene (3) is very small. This carbene does not fit into the general equation (b) and the isoselective relationship (c) of dihalocarbenes. The deviating behaviour can be explained by a diffusion controlled reaction rate of bromocarbethoxycarbene. |
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