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【结 构 式】 
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【分子编号】60249 【品名】1,1,4,4,7-pentamethyl-3,4-dihydro-2(1H)-naphthalenone 【CA登记号】 |
【 分 子 式 】C15H20O 【 分 子 量 】216.3232 【元素组成】C 83.29% H 9.32% O 7.4% |
与该中间体有关的原料药合成路线共 1 条
合成路线1
该中间体在本合成路线中的序号：(III)The intermediate tetrahydronaththalene (VI) has been prepared by an alternative procedure. Friedel-Crafts condensation of dihydro-2,2,5,5-tetramethyl-3(2H)-furanone (I) with toluene (II) by means of AlCl3 produces tetrahydronaphthalenone (III). This is reduced to alcohol (IV) employing NaBH4 in MeOH. Subsequent dehydration of (IV) with POCl3 in pyridine leads to the dihydronaphthalene (V). Then, catalytic hydrogenation of (V) over Pd/C provides the key pentamethyltetrahydronaphthalene (VI)
| 【1】 Zhang, L.; Badea, B.A.; Enyeart, D.; Berger, E.M.; Mais, D.E.; Boehm, M.F.; Syntheses of isotopically labeled 4-[1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydro-2-naphthyl)ethenyl]benzoic acid (LGD1069), a potent retinoid X receptor-selective ligand. J Label Compd Radiopharm 1995, 36, 7, 701. |
| 中间体序号 | 中间体编号 | 品名 | CAS号 | 分子式 | 供应商 | 用于合成 |
|---|---|---|---|---|---|---|
| (I) | 60248 | 2,2,5,5-tetramethyldihydro-3(2H)-furanone | C8H14O2 | 详情 | 详情 | |
| (II) | 12890 | Toluene | 108-88-3 | C7H8 | 详情 | 详情 |
| (III) | 60249 | 1,1,4,4,7-pentamethyl-3,4-dihydro-2(1H)-naphthalenone | C15H20O | 详情 | 详情 | |
| (IV) | 60250 | 1,1,4,4,7-pentamethyl-1,2,3,4-tetrahydro-2-naphthalenol | C15H22O | 详情 | 详情 | |
| (V) | 60251 | 1,1,4,4,6-pentamethyl-1,4-dihydronaphthalene | C15H20 | 详情 | 详情 | |
| (VI) | 35217 | 1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene | C15H22 | 详情 | 详情 |
Extended Information