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Synthesis of 4-Methyl-2-Isopropyl-1,3-Dioxolane by TiSiW_(12)O_(40)/TiO_2 as Catalyst
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作者 YANG Shui-jin YU Xie-qing 《合成化学》 CAS CSCD 2004年第z1期66-66,共1页
关键词 4-Methyl-2-isopropyl-1 3-dioxolane TiSiW12O40/TiO2 catalysis acetalation.
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Studies on the Total Synthesis of Sarcophytol-A——Synthesis of 2-Isopropyl-2-(3-Methyl-1-Benzoxyl-5-Phenylsulfonyl-3E-Pentenyl )-1,3-Dithiocyclohexane
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作者 Mao Jianmin, Li Weidong, Li Ying and Li Yulin(Laboratory of Applied Organic Chemistry, Institute of Organic Chemistry, Lanzhou University, Langzhou)Liang Xiaotian (Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing) 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 1991年第4期247-249,共3页
The key intermediate, 2-isopropyl-2-(3-methyl-1-benzoxyl-5-phenylsulfonyl-3E-pentenyl)-1, 3-dithiocycllohexane(Ⅲ), for the total synthesis of Sarcophytol-A (1)was prepared through 7 steps from acetone. The key steps ... The key intermediate, 2-isopropyl-2-(3-methyl-1-benzoxyl-5-phenylsulfonyl-3E-pentenyl)-1, 3-dithiocycllohexane(Ⅲ), for the total synthesis of Sarcophytol-A (1)was prepared through 7 steps from acetone. The key steps are nucleophilic addition of 2-1ithio-2-isopropyl-1,3-dithiocyclohexane to aldehyde 5 and double bond migration reaction of allylic alcohol 9 and 10. 展开更多
关键词 Sarcophytol-A 2-isopropyl-2-(3-methyl-l-benzoxyl-5-phenylsulfonyl-3E-PentenyD-1 3-dithiocyclohexane Synthesis
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