Decoupling deprotonation from metalation:: Thia-Fries rearrangement
Decoupling deprotonation from metalation:: Thia-Fries rearrangement
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DOI:
10.1002/anie.200800750
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发表时间:
2008-01-01
影响因子:
16.6
通讯作者:
Shepperson, Ian R.
中科院分区:
文献类型:
--
作者:
Dyke, Alan M.;Gill, Duncan M.;Shepperson, Ian R.
Label-enabled: Studies with 2H-, 18O-, and 34S-labeled aryl triflates show that lithium diisopropylamide-mediated thia-Fries rearrangement proceeds through an irreversible ortho deprotonation (see scheme; DIPA=diisopropylamine, LDA=lithium diisopropylamide). In contrast, ortho metalation results exclusively in the generation of a benzyne.