A new protocol for in situ dioxirane reactions: stoichiometric in oxone and catalytic in fluorinated acetophenones.
A new protocol for in situ dioxirane reactions: stoichiometric in oxone and catalytic in fluorinated acetophenones.
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原位二环氧乙烷反应的新方案:臭氧中的化学计量和氟化苯乙酮中的催化。
DOI:
10.1021/ol0348957
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Fuchs,PhilipL
中科院分区:
文献类型:
--
作者:
Li,Wei;Fuchs,PhilipL
Dioxiranes madein situfrom the commercially available tetrafluoroacetophenones (7,8) and pentafluoroacetophenone (9) are reported for highly efficient epoxidation of olefins for the first time. Studies showed that ketone7,8, or9can be used in catalytic amount (0.2 equiv) with only 0.6 equiv of Oxone (equal to 1.2 equiv of peroxymonosulfate) to selectively oxidize diene1to epoxide2. The epoxidation reactions of dioxiranes of fluoroacetophenones are compared with the recently described complementary aliphatic acyclic fluorinated ketones.
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