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公开(公告)号:KR102026557B1
公开(公告)日:2019-09-27
申请号:KR1020180015901
申请日:2018-02-08
Applicant: 강원대학교산학협력단
Inventor: 배준성
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公开(公告)号:KR101029091B1
公开(公告)日:2011-04-13
申请号:KR1020100032177
申请日:2010-04-08
Applicant: 강원대학교산학협력단
IPC: C07D307/26 , C07D307/28
Abstract: PURPOSE: A method for preparing dihydrofuran derivative is provided to selectively prepare dihydrofuran derivative with high yield by a simple test. CONSTITUTION: A dihydrofuran derivative of chemical formula 1 is prepared by intramolecular cyclization of alenyl alcohol derivative of chemical formula 2 under the presence of a cupper salt catalyst of CuCl, CuBr, CuI, CuOTf, Cu(OTf)2, CuCl2, CuBr2, CuI_2, or Cu(OAc)_2, or solvent of N,N-dimethylformamide(DMF), or N,N-dimethylaceteamide(DMA). The organic solvent is dichloromethane(DCM), dichloroethane(DCE), toluene, acetonitrile(MeCN), nitromethane, tetrahydrofuran(THF), N,N-dimehtylformamide(DMF), or N,N-dimethylaceteamide(DMA).
Abstract translation: 目的:提供制备二氢呋喃衍生物的方法,通过简单的试验选择性地制备二氢呋喃衍生物,产率高。 构成:化学式1的二氢呋喃衍生物通过在CuCl,CuBr,CuI,CuOTf,Cu(OTf)2,CuCl 2,CuBr 2,CuI 2的铜盐催化剂存在下,通过化学式2的烯丙醇衍生物的分子内环化制备 ,或Cu(OAc)2,或N,N-二甲基甲酰胺(DMF)或N,N-二甲基乙酰胺(DMA)的溶剂。 有机溶剂是二氯甲烷(DCM),二氯乙烷(DCE),甲苯,乙腈(MeCN),硝基甲烷,四氢呋喃(THF),N,N-二甲基甲酰胺(DMF)或N,N-二甲基乙酰胺(DMA)。
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