Triflic acid-mediated rearrangements of 3-methoxy-8-oxabicyclo[3.2.1]octa-3,6-dien-2-ones: synthesis of methoxytropolones and furans.
Triflic acid-mediated rearrangements of 3-methoxy-8-oxabicyclo[3.2.1]octa-3,6-dien-2-ones: synthesis of methoxytropolones and furans.
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DOI:
10.1021/jo401617r
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发表时间:
2013-12-06
期刊:
影响因子:
--
通讯作者:
Murelli RP
中科院分区:
文献类型:
--
作者:
Williams YD;Meck C;Mohd N;Murelli RP
Methoxytropolones are useful scaffolds for therapeutic development due to their known biological activity and established value in the synthesis of α-hydroxytropolones. Upon treatment with triflic acid, a series of 3-methoxy-8-oxabicyclo[3.2.1]octa-3,6-dien-2-ones rearrange rapidly and cleanly to form methoxytropolones. Interestingly, bicycles that are derived from dimethyl acetylenedicarboxylate (R2=R3=CO2Me) instead form furans as the major product.
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