Base mediated deprotection strategies for trifluoroethyl (TFE) ethers, a new alcohol protecting group.
Base mediated deprotection strategies for trifluoroethyl (TFE) ethers, a new alcohol protecting group.
复制标题
新的饮酒组的三氟乙基(TFE)醚的基本介导的脱落策略。
DOI:
10.1016/j.tetlet.2013.10.097
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发表时间:
2013-12-18
影响因子:
1.8
通讯作者:
Njardarson JT
中科院分区:
文献类型:
--
作者:
Yang Q;Njardarson JT
A trifluoroethyl (TFE) ether is specifically introduced as a protecting group in organic chemistry. Its first strategic application and removal in the total synthesis of vinigrol is discussed. Two lithium base mediated deprotection strategies for its removal are presented in this Letter. In one deprotection approach, the trifluoroethyl ether is converted to a difluorovinyl ether and then catalytically cleaved using osmium tetraoxide, while in the second approach a difluorovinyl anion is formed and trapped with an electrophilic oxygen reagent (MoOPH) to form a labile difluoroacetate. To further aid the reader, a summary of approaches for forming trifluoroethyl ethers is included as well as a discussion of alternate deprotection strategies.
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影响因子:
1.8
作者:
Garayt, MR;Percy, JM
通讯作者:
Percy, JM
DOI:
10.1002/anie.199213451
发表时间:
1992-10-01
期刊:
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH
影响因子:
--
作者:
HERRMANN, WA;EDER, SJ;SCHERER, W
通讯作者:
SCHERER, W
影响因子:
5.2
作者:
Lubin, Hodney;Tessier, Arnaud;Brigaud, Thierry
通讯作者:
Brigaud, Thierry
影响因子:
5.2
作者:
Milgram, Benjamin C.;Liau, Brian B.;Shair, Matthew D.
通讯作者:
Shair, Matthew D.
影响因子:
2.3
作者:
Möller, M;Husemann, M;Boche, G
通讯作者:
Boche, G