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Highly stereoselective synthesis of trans-4-trifluoromethylsulfonyl-2,3-dihydrofurans from arsonium ylides and (E)-α-trifluoromethylsulfonyl-α,β-unsaturated ketones
作者:Zhenqi Chen、Jiaping Zhang、Jie Chen、Hongmei Deng、Min Shao、Hui Zhang、Weiguo Cao
DOI:10.1016/j.tet.2010.05.097
日期:2010.8
The reactions of arsonium bromides with (E)-α-trifluoromethylsulfonyl-α,β-unsaturated ketones in the presence of Cs2CO3 or K2CO3 proceeded smoothly under refluxing condition in dichloromethane (DCM) to give the corresponding trifluoromethylated trans-2,3-dihydrofurans in good to excellent yields with high stereoselectivity.
在二氯甲烷(DCM)中,在回流条件下,在Cs 2 CO 3或K 2 CO 3存在下,溴化砷鎓与(E)-α-三氟甲基磺酰基-α,β-不饱和酮的反应平稳进行,得到相应的三氟甲基化反式- 2,3-二氢呋喃具有良好的收率和优异的立体选择性。
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Samaan,S., Phosphorus and the Related Group V Elements, 1975, vol. 6, p. 95 - 97
作者:Samaan,S.
DOI:——
日期:——
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Tewari, R. S.; Suri, S. K.; Gupta, K. C., Synthetic Communications, 1980, vol. 10, # 6, p. 457 - 464
作者:Tewari, R. S.、Suri, S. K.、Gupta, K. C.
DOI:——
日期:——
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Gupta, K. C.; Srivastava, N.; Nigam, R. K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1981, vol. <B> 20, # 9, p. 802 - 803
作者:Gupta, K. C.、Srivastava, N.、Nigam, R. K.
DOI:——
日期:——
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Tewari, R. S.; Suri, S. K.; Gupta, K. C., Zeitschrift fur Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1980, vol. 35, # 1, p. 95 - 98
作者:Tewari, R. S.、Suri, S. K.、Gupta, K. C.
DOI:——
日期:——