CN116655454A - 一种顺-1,4-环己二醇的合成方法 - Google Patents
一种顺-1,4-环己二醇的合成方法 Download PDFInfo
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- CN116655454A CN116655454A CN202310561874.3A CN202310561874A CN116655454A CN 116655454 A CN116655454 A CN 116655454A CN 202310561874 A CN202310561874 A CN 202310561874A CN 116655454 A CN116655454 A CN 116655454A
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- cyclohexanediol
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- cyclohexanedione
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- VKONPUDBRVKQLM-UHFFFAOYSA-N cyclohexane-1,4-diol Chemical compound OC1CCC(O)CC1 VKONPUDBRVKQLM-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000001308 synthesis method Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 239000003054 catalyst Substances 0.000 claims abstract description 20
- DCZFGQYXRKMVFG-UHFFFAOYSA-N cyclohexane-1,4-dione Chemical compound O=C1CCC(=O)CC1 DCZFGQYXRKMVFG-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052707 ruthenium Inorganic materials 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims description 19
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- 239000012074 organic phase Substances 0.000 claims description 14
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical group CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 12
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 10
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 7
- 230000000171 quenching effect Effects 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 claims description 6
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical group COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 4
- 235000019253 formic acid Nutrition 0.000 claims description 4
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 3
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 claims description 3
- RPDAUEIUDPHABB-UHFFFAOYSA-N potassium ethoxide Chemical compound [K+].CC[O-] RPDAUEIUDPHABB-UHFFFAOYSA-N 0.000 claims description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 claims description 2
- MFGOFGRYDNHJTA-UHFFFAOYSA-N 2-amino-1-(2-fluorophenyl)ethanol Chemical compound NCC(O)C1=CC=CC=C1F MFGOFGRYDNHJTA-UHFFFAOYSA-N 0.000 claims description 2
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 2
- XBPCUCUWBYBCDP-UHFFFAOYSA-N Dicyclohexylamine Chemical compound C1CCCCC1NC1CCCCC1 XBPCUCUWBYBCDP-UHFFFAOYSA-N 0.000 claims description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical group CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 2
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 2
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 2
- HUCVOHYBFXVBRW-UHFFFAOYSA-M caesium hydroxide Inorganic materials [OH-].[Cs+] HUCVOHYBFXVBRW-UHFFFAOYSA-M 0.000 claims description 2
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims description 2
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 claims description 2
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 claims description 2
- FRQONEWDWWHIPM-UHFFFAOYSA-N n,n-dicyclohexylcyclohexanamine Chemical compound C1CCCCC1N(C1CCCCC1)C1CCCCC1 FRQONEWDWWHIPM-UHFFFAOYSA-N 0.000 claims description 2
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 2
- 239000011736 potassium bicarbonate Substances 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 235000011181 potassium carbonates Nutrition 0.000 claims description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 230000002194 synthesizing effect Effects 0.000 claims 9
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000002585 base Substances 0.000 description 5
- PMMYEEVYMWASQN-IMJSIDKUSA-N cis-4-Hydroxy-L-proline Chemical compound O[C@@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-IMJSIDKUSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- VKONPUDBRVKQLM-IZLXSQMJSA-N O[C@H]1CC[C@H](O)CC1 Chemical class O[C@H]1CC[C@H](O)CC1 VKONPUDBRVKQLM-IZLXSQMJSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SXGITZOWHCADGV-UHFFFAOYSA-N 2,3,4,5-tetrabromocyclohexa-1,5-diene-1,4-diol Chemical compound BrC1=C(O)C=C(C(C1Br)(O)Br)Br SXGITZOWHCADGV-UHFFFAOYSA-N 0.000 description 1
- 229910003310 Ni-Al Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000012069 chiral reagent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
本发明属于有机化学合成技术领域,具体涉及一种顺‑1,4‑环己二醇的合成方法。该方法以1,4‑环己二酮为原料,以大位阻钌系催化剂控制反应选择性,一步合成顺‑1,4‑环己二醇。该方法具有产率高、反应步骤少、顺/反选择性高、绿色环保等优点。
Description
技术领域
本发明属于有机化学合成技术领域,具体涉及一种顺-1,4-环己二醇的合成方法。
背景技术
1,4-环己二醇分子中含有两个羟基、且为环状结构,化学性质较为活泼,同时具有一定的刚性,广泛应用于医药、材料、农药等行业。1,4-环己二醇分为顺-1,4-环己二醇和反-1,4-环己二醇,如下所示,顺-1,4-环己二醇和反-1,4-环己二醇是不同的化合物,它们具有不同的空间结构,在很多方面表现出来不同的物理、化学性质。
顺-1,4-环己二醇在手性试剂、聚合物中有非常重要的价值和独特的性能,目前对顺-1,4-环己二醇的合成方法研究也越来越受到关注。
顺-1,4-环己二醇的合成方法主要有以下几种:
(1)在Chemistry-A European Journal,2009,15(28),6953-6963中,作者以对苯二酚为原料,以Ru/C为催化剂,在10个大气压的氢气氛围下,90度反应24小时后,制备了1,4-环己二醇混合物,产物中顺反比为75:25。该方法虽然合成路线简单,但不能有效制备出高顺反比的1,4-环己二醇。
(2)在Bioorganic&Medicinal Chemistry Letters,2015,25(3),695-700中,作者以乙二醇保护羰基的原料出发,在盐酸水溶液中,脱除保护基,制备了1,4-环己二醇混合物,该方法最大的缺点在于其原料不易得。
(3)在Chemistry Express,1993,8(7),495-498中,作者以2,3,4,5-四溴对苯二酚为原料,在Ni-Al合金的催化作用下,合成得到1,4-环己二醇混合物,顺反比为50:50,并没有合成出顺-1,4-环己二醇。
(4)在专利CN 107759446 A中,作者以4-(烃基酰氧基)环己酮为原料,经过还原反应,合成了非对映异构体,再经过柱层析分离出顺式中间产物以后,最后经过水解制备得到了顺-1,4-环己二醇。该方法步骤繁琐,中间体只有50%被利用,原子经济性低,通过柱层析分离,不适合大规模制备。
(5)在Tetrahedron Letters,2014,55,128-132中,作者在钌催化剂的作用下加氢合成1,4-环己二醇,遗憾的是得到的混合物,无法得到单一构型的产物。
综上已报道的方法,主要有以下缺点:步骤繁琐、反应时间长、成本高、原料不易得、得到混合物难以分离等。
发明内容
针对现有技术存在的技术问题,本发明的目的在于提供一种反应步骤少、原料易得、产品纯度高、适用于大量生产的顺-1,4-环己二醇的合成方法。
为实现上述目的,本发明采取的技术方案如下:
顺-1,4-环己二醇的合成方法,合成路线为:
合成步骤为:在反应器中,加入1,4-环己二酮、催化剂、氢源、碱和溶剂,在30~100℃下搅拌反应5~48h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用有机溶剂萃取体系中的有机相,随后浓缩、纯化处理,即得顺-1,4-环己二醇。
优选地,所述催化剂为大位阻钌系催化剂,其结构式如式L1~L12中的一种:
优选地,所述1,4-环己二酮与催化剂的摩尔比为800~10000:1。
优选地,所述氢源为甲酸、甲酸铵、乙酸、乙醇或氨水。
优选地,所述1,4-环己二酮与氢源的摩尔比为1:5~20。
优选地,所述碱为氢氧化钠、氢氧化钾、氢氧化铯、碳酸钠、碳酸钾、碳酸铯、碳酸氢钠、碳酸氢钾、三甲胺、二甲胺、三乙胺、二乙胺、三环己基胺、二环己基胺、甲醇钠、乙醇钾、叔丁醇钠、丁基锂、叔丁基锂或二异丙基胺基锂。
优选地,所述1,4-环己二酮与碱的摩尔比为1:5~50。
优选地,所述溶剂为N-甲基吡咯烷酮、2-甲基四氢呋喃、四氢呋喃、1,4-二氧六环、N,N-二甲基甲酰胺、二氯甲烷、甲苯、二甲苯、甲醇、乙醇、二氯乙烷、氯仿、乙腈、二甲亚砜或六甲基磷酰胺。
优选地,所述1,4-环己二酮在溶剂中浓度为0.1~5mol/L(简写为M)。
优选地,所述有机溶剂为乙酸乙酯、甲基叔丁基醚、二氯甲烷、乙醚或三氯甲烷。
有益效果:本发明以大位阻钌系催化剂来控制反应选择性,高顺反比的一步合成得到顺-1,4-环己二醇,该方法具有产率高、反应步骤少、顺/反选择性高、绿色环保等优点。
附图说明
图1为本发明实施例1所得目标产物顺-1,4-环己二醇的核磁共振氢谱图。
图2为本发明实施例1所得目标产物顺-1,4-环己二醇的核磁共振碳谱图。
具体实施方式
下面结合实施例对本发明作详细的说明,但本发明的保护范围不限于下述的实施例。
实施例1
一种顺-1,4-环己二醇的合成方法:在反应器中,加入1,4-环己二酮(摩尔当量1)、催化剂L1(摩尔当量0.001)、以甲酸为氢源(摩尔当量10)、叔丁醇钠为碱(摩尔当量20)、二氯甲烷为溶剂(0.2M),在30℃下搅拌反应10h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用乙酸乙酯萃取体系中的有机相,硅藻土过滤,浓缩有机相,除去溶剂即得顺-1,4-环己二醇,收率95%。
将目标产物进行核磁表征,结果为:
1HNMR(400MHz,[D6]DMSO):δ4.29(s,2H),3.51(m,2H),1.59-1.36(m,8H);
13CNMR(400MHz,[D6]DMSO):δ65.89,30.37。
目标产物的熔点为98-100℃,密度为1.156g/cm3。
实施例2
一种顺-1,4-环己二醇的合成方法:在反应器中,加入1,4-环己二酮(摩尔当量1)、催化剂L2(摩尔当量0.08)、以甲酸铵为氢源(摩尔当量5)、三乙胺为碱(摩尔当量5)、1,4-二氧六环为溶剂(1M),在40℃下搅拌反应5h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用甲基叔丁基醚萃取体系中的有机相,硅藻土过滤,浓缩有机相,除去溶剂即得顺-1,4-环己二醇,收率90%。
本实施例目标产物的核磁数据、熔点和密度同实施例1。
实施例3
一种顺-1,4-环己二醇的合成方法:在反应器中,加入1,4-环己二酮(摩尔当量1)、催化剂L6(摩尔当量0.002)、以乙酸为氢源(摩尔当量20)、氢氧化钠为碱(摩尔当量15)、二甲苯为溶剂(2M),在50℃下搅拌反应20h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用二氯甲烷萃取体系中的有机相,硅藻土过滤,浓缩有机相,除去溶剂即得顺-1,4-环己二醇,收率91%。
本实施例目标产物的核磁数据、熔点和密度同实施例1。
实施例4
一种顺-1,4-环己二醇的合成方法:在反应器中,加入1,4-环己二酮(摩尔当量1)、催化剂L8(摩尔当量0.0001)、以氨水为氢源(摩尔当量15)、丁基锂为碱(摩尔当量30)、四氢呋喃为溶剂(5M),在60℃下搅拌反应24h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用乙酸乙酯萃取体系中的有机相,硅藻土过滤,浓缩有机相,除去溶剂即得顺-1,4-环己二醇,收率89%。
本实施例目标产物的核磁数据、熔点和密度同实施例1。
实施例5
一种顺-1,4-环己二醇的合成方法:在反应器中,加入1,4-环己二酮(摩尔当量1)、催化剂L10(摩尔当量0.005)、以乙醇为氢源(摩尔当量7)、碳酸氢钠为碱(摩尔当量40)、甲苯为溶剂(0.5M),在80℃下搅拌反应36h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用乙醚萃取体系中的有机相,硅藻土过滤,浓缩有机相,除去溶剂即得顺-1,4-环己二醇,收率98%。
本实施例目标产物的核磁数据、熔点和密度同实施例1。
实施例6
一种顺-1,4-环己二醇的合成方法:在反应器中,加入1,4-环己二酮(摩尔当量1)、催化剂L12(摩尔当量0.007)、以甲酸为氢源(摩尔当量9)、乙醇钾为碱(摩尔当量50)、N,N-二甲基甲酰胺为溶剂(0.1M),在100℃下搅拌反应48h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用三氯甲烷萃取体系中的有机相,硅藻土过滤,浓缩有机相,除去溶剂即得顺-1,4-环己二醇,收率94%。
本实施例目标产物的核磁数据、熔点和密度同实施例1。
Claims (10)
1.一种顺-1,4-环己二醇的合成方法,其特征在于:在反应器中,加入1,4-环己二酮、催化剂、氢源、碱和溶剂,在30~100℃下搅拌反应5~48h,反应结束后冷却至室温,用饱和碳酸氢钠水溶液淬灭反应,用有机溶剂萃取体系中的有机相,随后浓缩、纯化处理,即得顺-1,4-环己二醇。
2.根据权利要求1所述的顺-1,4-环己二醇的合成方法,其特征在于:所述催化剂为大位阻钌系催化剂,其结构式如式L1~L12中的一种:
3.根据权利要求1或2所述的顺-1,4-环己二醇的合成方法,其特征在于:所述1,4-环己二酮与催化剂的摩尔比为800~10000:1。
4.根据权利要求1所述的顺-1,4-环己二醇的合成方法,其特征在于:所述氢源为甲酸、甲酸铵、乙酸、乙醇或氨水。
5.根据权利要求1或4所述的顺-1,4-环己二醇的合成方法,其特征在于:所述1,4-环己二酮与氢源的摩尔比为1:5~20。
6.根据权利要求1所述的顺-1,4-环己二醇的合成方法,其特征在于:所述碱为氢氧化钠、氢氧化钾、氢氧化铯、碳酸钠、碳酸钾、碳酸铯、碳酸氢钠、碳酸氢钾、三甲胺、二甲胺、三乙胺、二乙胺、三环己基胺、二环己基胺、甲醇钠、乙醇钾、叔丁醇钠、丁基锂、叔丁基锂或二异丙基胺基锂。
7.根据权利要求1或6所述的顺-1,4-环己二醇的合成方法,其特征在于:所述1,4-环己二酮与碱的摩尔比为1:5~50。
8.根据权利要求1所述的顺-1,4-环己二醇的合成方法,其特征在于:所述溶剂为N-甲基吡咯烷酮、2-甲基四氢呋喃、四氢呋喃、1,4-二氧六环、N,N-二甲基甲酰胺、二氯甲烷、甲苯、二甲苯、甲醇、乙醇、二氯乙烷、氯仿、乙腈、二甲亚砜或六甲基磷酰胺。
9.根据权利要求1或8所述的顺-1,4-环己二醇的合成方法,其特征在于:所述1,4-环己二酮在溶剂中浓度为0.1~5mol/L。
10.根据权利要求1所述的顺-1,4-环己二醇的合成方法,其特征在于:所述有机溶剂为乙酸乙酯、甲基叔丁基醚、二氯甲烷、乙醚或三氯甲烷。
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