Executing and rationalizing the synthesis of a difluorinated analogue of a ring-expanded calystegine B2.
Executing and rationalizing the synthesis of a difluorinated analogue of a ring-expanded calystegine B2.
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进行扩环 Calystegine B2 的二氟化类似物的合成并使其合理化。
DOI:
10.1021/jo2022845
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Kyne SH
中科院分区:
文献类型:
--
作者:
Kyne SH
A difluorinated analogue of a ring-expanded calystegine B2and someN-protected species were prepared via microwave-mediated transannular ring-opening of an epoxyketone. The diastereofacial selectivity of the epoxidation reaction, which delivers the key intermediate, and the regioselectivity of the transannular reactions were analyzed by density functional theory (DFT) methods. The epoxidation stereoselectivity arises from simple steric control, whereas the ring-closure reactions are subject to thermodynamic control.
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