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学科主题: 有机氟化学
题名: Regioselective synthesis of 6-trifluoromethyl-1,4,5,6-tetrahydropyrazolo[3,4-b]pyran derivatives
其他题名: 区域选择性合成6-(三氟甲基)-2,4,5,6-四氢吡唑[3,4-b]吡喃衍生物
作者: Li DM(李冬梅) ; Song LP(宋力平) ; Song SD(宋少迪) ; Zhu SZ(朱仕正)
通讯作者: 宋力平 ; 朱仕正
刊名: J. Fluor. Chem.
发表日期: 2007
卷: 128, 期:8, 页:952-957
收录类别: SCI
部门归属: 上海大学; 上海有机所
英文摘要: A facile two-step procedure for the synthesis of 6-(trifluoromethyl)-1,4,5,6-tetrahydropyrazolo[3,4-b] pyran derivatives (4) from the reaction of 4-arylidene-3-methyl-l-phenyl-5-pyrazolones (1) with ethyl trifluoroacetoacetate (2), a versatile fluorinated building-block, was presented. Furthermore, to increase the efficiency of this reaction, the more convenient one-pot three-component process was also developed with a slightly lower yield. Treatment of 4 with P2O5, conc. H2SO4, POCl3/Py or p-TsOH under the drastic conditions did not afford the corresponding dehydrated products. (c) 2007 Elsevier B.V. All rights reserved.
语种: 英语
相关网址: 查看原文
WOS记录号: WOS:000248929800010
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/14414
Appears in Collections:中科院有机氟化学重点实验室_期刊论文

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Recommended Citation:
Li DM,Song LP,Song SD,et al. Regioselective synthesis of 6-trifluoromethyl-1,4,5,6-tetrahydropyrazolo[3,4-b]pyran derivatives[J]. J. Fluor. Chem.,2007,128(8):952-957.
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