Substitution of 9-(α-bromo-α-arylmethyle
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Zvi Rappoport; Bagrat A. Shainyan
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Article
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1997
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John Wiley and Sons
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English
⚖ 98 KB
The substitution of 9-(␣-bromo-␣-arylmethylene)fluorenes by MeS ؊ and p-TolS ؊ ions in 80% MeCN-20% H 2 O is a second-order reaction. With MeS ؊ , for the change of the ␣-aryl group, Hammett's = 1•07 in MeCN. The reaction rate decreases on increasing the water content of the medium. The reactions pr