CN117624261A - 一种三氯蔗糖-6-乙酯的制备方法 - Google Patents
一种三氯蔗糖-6-乙酯的制备方法 Download PDFInfo
- Publication number
- CN117624261A CN117624261A CN202311675635.7A CN202311675635A CN117624261A CN 117624261 A CN117624261 A CN 117624261A CN 202311675635 A CN202311675635 A CN 202311675635A CN 117624261 A CN117624261 A CN 117624261A
- Authority
- CN
- China
- Prior art keywords
- ethyl ester
- sucralose
- sucrose
- reaction
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000002904 solvent Substances 0.000 claims abstract description 19
- SLKWROUNLHVIIQ-UHFFFAOYSA-N hexachlorocyclohexa-2,5-dien-1-one Chemical compound ClC1=C(Cl)C(Cl)(Cl)C(Cl)=C(Cl)C1=O SLKWROUNLHVIIQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 12
- 238000005660 chlorination reaction Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000012043 crude product Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000002808 molecular sieve Substances 0.000 claims description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 229910017813 Cu—Cr Inorganic materials 0.000 claims description 2
- MHABMANUFPZXEB-UHFFFAOYSA-N O-demethyl-aloesaponarin I Natural products O=C1C2=CC=CC(O)=C2C(=O)C2=C1C=C(O)C(C(O)=O)=C2C MHABMANUFPZXEB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000001953 recrystallisation Methods 0.000 claims description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 abstract description 10
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 15
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 15
- 239000000047 product Substances 0.000 description 13
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 230000003213 activating effect Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000011949 solid catalyst Substances 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000004376 Sucralose Substances 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000000498 ball milling Methods 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- BAQAVOSOZGMPRM-QBMZZYIRSA-N sucralose Chemical compound O[C@@H]1[C@@H](O)[C@@H](Cl)[C@@H](CO)O[C@@H]1O[C@@]1(CCl)[C@@H](O)[C@H](O)[C@@H](CCl)O1 BAQAVOSOZGMPRM-QBMZZYIRSA-N 0.000 description 4
- 235000019408 sucralose Nutrition 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 239000012295 chemical reaction liquid Substances 0.000 description 3
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000012018 catalyst precursor Substances 0.000 description 2
- 239000012320 chlorinating reagent Substances 0.000 description 2
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 description 2
- LJAOOBNHPFKCDR-UHFFFAOYSA-K chromium(3+) trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Cr+3] LJAOOBNHPFKCDR-UHFFFAOYSA-K 0.000 description 2
- 229940116318 copper carbonate Drugs 0.000 description 2
- MPTQRFCYZCXJFQ-UHFFFAOYSA-L copper(II) chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Cu+2] MPTQRFCYZCXJFQ-UHFFFAOYSA-L 0.000 description 2
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 2
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 2
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 235000003599 food sweetener Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003765 sweetening agent Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 229910021555 Chromium Chloride Inorganic materials 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- FACOTAQCKSDLDE-YKEUTPDRSA-N [(2R,3R,4R,5R,6R)-6-[(2R,3S,4S,5S)-2,5-bis(chloromethyl)-3,4-dihydroxyoxolan-2-yl]oxy-3-chloro-4,5-dihydroxyoxan-2-yl]methyl acetate Chemical compound O[C@@H]1[C@@H](O)[C@@H](Cl)[C@@H](COC(=O)C)O[C@@H]1O[C@@]1(CCl)[C@@H](O)[C@H](O)[C@@H](CCl)O1 FACOTAQCKSDLDE-YKEUTPDRSA-N 0.000 description 1
- 230000010933 acylation Effects 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- QSWDMMVNRMROPK-UHFFFAOYSA-K chromium(3+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].[Cr+3] QSWDMMVNRMROPK-UHFFFAOYSA-K 0.000 description 1
- JUQFEEVQWAPQNP-UHFFFAOYSA-K chromium(3+);phosphate;hexahydrate Chemical compound O.O.O.O.O.O.[Cr+3].[O-]P([O-])([O-])=O JUQFEEVQWAPQNP-UHFFFAOYSA-K 0.000 description 1
- GVHCUJZTWMCYJM-UHFFFAOYSA-N chromium(3+);trinitrate;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GVHCUJZTWMCYJM-UHFFFAOYSA-N 0.000 description 1
- 229910000151 chromium(III) phosphate Inorganic materials 0.000 description 1
- IKZBVTPSNGOVRJ-UHFFFAOYSA-K chromium(iii) phosphate Chemical compound [Cr+3].[O-]P([O-])([O-])=O IKZBVTPSNGOVRJ-UHFFFAOYSA-K 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000105 evaporative light scattering detection Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000563 toxic property Toxicity 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000010887 waste solvent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/86—Chromium
- B01J23/868—Chromium copper and chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/78—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J29/7807—A-type
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H13/00—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids
- C07H13/02—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids
- C07H13/04—Compounds containing saccharide radicals esterified by carbonic acid or derivatives thereof, or by organic acids, e.g. phosphonic acids by carboxylic acids having the esterifying carboxyl radicals attached to acyclic carbon atoms
- C07H13/06—Fatty acids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Saccharide Compounds (AREA)
Abstract
本发明公开了一种三氯蔗糖‑6‑乙酯的制备方法。该方法包括在负载型催化剂的作用下,使蔗糖‑6‑乙酯和六氯环己‑2,5‑二烯酮在溶剂中发生选择性氯化反应,生成三氯蔗糖‑6‑乙酯。本方法工艺简单、条件温和,避免了光气和二氯亚砜的使用,大幅简化了后处理流程,降低能耗;使用的负载型催化剂易于分离,且环境友好。
Description
技术领域
本发明涉及一种有机合成方法,尤其涉及一种三氯蔗糖-6-乙酯的制备方法。
背景技术
三氯蔗糖是人工合成的第五代甜味剂,是唯一以蔗糖为原料的功能性甜味剂,具有低热量、高甜度、高安全性、甜味纯正等优点, 目前被广泛应用在饮料、餐桌调料、烘焙食品、乳制品等多种食品中 。
现有的三氯蔗糖工业合成路线主要采用单基团保护法,包括酰化保护、氯化、醇解三步反应,其中经氯代反应生成的三氯蔗糖-6-乙酯是合成三氯蔗糖的重要中间体,其收率及分离纯度直接影响终产品的收率及品质。氯化反应机理复杂,副产物较多,目前工业化选择的氯化试剂主要有光气和二氯亚砜两种,光气本身的剧毒性质使生产过程存在较大的安全隐患,二氯亚砜法收率偏低,且会分解产生二氧化硫废气,对产品品质影响较大且难以处理。
专利EP0409549、CN102439020B中提及使用光气作为氯化试剂,过量光气的使用使得反应后需用大量碱猝灭,不仅工艺过程安全风险高,后处理还十分复杂、能耗较高。
专利CN101619083B、CN103145772A等提及使用二氯亚砜制备三氯蔗糖-6-乙酯的方法,存在收率偏低、成本较高的缺点,同时有大量的废溶剂、二氧化硫废气产生,三废难于处理。
针对上述工艺的不足,急需开发一种新的三氯蔗糖-6-乙酸酯的合成方法,克服现有工艺中产品收率低、后处理复杂、生产能耗高等问题。
发明内容
为了解决以上技术问题,本发明提出一种三氯蔗糖-6-乙酯的制备方法。本方法工艺简单、条件温和,避免了光气和二氯亚砜的使用,大幅简化了后处理流程,降低能耗;使用的负载型催化剂易于分离,且环境友好。
一种三氯蔗糖-6-乙酯的制备方法,包括在负载型催化剂的作用下,使蔗糖-6-乙酯和六氯环己-2,5-二烯酮在溶剂中发生选择性氯化反应,生成三氯蔗糖-6-乙酯;
蔗糖-6-乙酯
三氯蔗糖-6-乙酯
所述负载型催化剂表示为Cu-Cr/X,包括Cu主催化剂、Cr助催化剂以及X载体,其中,X载体选自活性炭、碳纳米管、分子筛、中性氧化铝、二氧化硅中的一种或多种,优选4A分子筛、二氧化硅中的一种或多种。
作为本发明的优选方案,所述负载型催化剂中,Cu/Cr含量比为1:(0.3-0.6),优选1:(0.3-0.4),以金属元素摩尔比计;
优选地,所述负载型催化剂中,载体质量为Cu元素质量的8-15倍,优选10-14倍。
所述负载型催化剂可通过球磨法、共沉淀法、水热法、吸附法、浸渍法、溶胶凝胶法中的至少一种而制得,本发明对此不作任何限制,但从以与操作的角度考虑,优选球磨法。
以下是球磨法制备负载型催化剂的可行示例:
S1:活化载体:将载体用稀酸浸泡,反复水洗后烘干;稀酸可以是浓度为0.01-0.5mol/L的盐酸、硫酸、磷酸中的一种或多种;浸泡温度例如是在20-30℃下进行处理。
S2:将含Cu化合物、含Cr化合物与活化后载体进行球磨混合,得到催化剂前驱体;其中,含Cu化合物可以选自氯化铜、硫酸铜、醋酸铜、碳酸铜中的一种或多种,含Cr化合物可以选自氯化铬、硫酸铬、硝酸铬、磷酸铬中的一种或多种;所述的球磨例如采用行星式球磨机。
S3:将催化剂前驱体进行焙烧、破碎、成型,即得所述负载型催化剂。优选地,所述焙烧温度可以是400-550℃,焙烧时间例如2-6小时。
作为本发明的优选方案,所述负载型催化剂的用量,相对于蔗糖-6-乙酯为3-10wt%,优选4-7wt%。
作为本发明的优选方案,所述蔗糖-6-乙酯和六氯环己-2,5-二烯酮的摩尔比为1:(3-5),优选1:(3-4)。
作为本发明的优选方案,所述溶剂为DMF(N,N-二甲基甲酰胺)和/或DMAC(N,N-二甲基乙酰胺);
优选地,所述溶剂的用量是蔗糖-6-乙酯质量的6-12倍。
作为本发明的优选方案,反应采用程序升温,在1-3小时内升温至70-90℃并保温反应2-5小时。
作为本发明的优选方案,反应结束后,蒸馏除去溶剂,将粗产品通过重结晶提纯,得到三氯蔗糖-6-乙酯。
本发明的有益效果在于:
本发明以六氯环己-2,5-二烯酮为氯化试剂,可高收率制得三氯蔗糖-6-乙酯,解决了传统合成工艺安全隐患大、产品收率低、副产物较多等问题。因此,本发明中工艺路线具有反应条件温和、绿色环保,产品收率高,后处理流程简单等优点,并且通过对负载型催化剂进行结构设计与优化,在高转化率促进反应进行的同时,可以抑制多氯代副反应,从而提升反应选择性;本发明方法的原料转化率以及产品选择性均>90%。
具体实施方式
下面通过具体实施例对本发明做进一步说明,本发明所述实施例只是作为对本发明的说明,不限制本发明的范围。
本发明中原料和试剂如无特殊说明,均可通过市售途径购买获得。
产品的液相色谱分析条件:Waters液相色谱仪,Waters XBridge Amide色谱柱,检测器为ELSD检测器,流动相乙腈/氨水为60/40,色谱柱温度为45℃。
以下实施例中仪器、试剂的来源如下表1:
表1
仪器及试剂 | 来源 | 规格 |
液相色谱仪 | Waters | |
行星式球磨机 | 秋佐科技 | XQM-0.4型 |
蔗糖-6-乙酯 | 市售,CAS 63648-81-7 | >98% |
六氯环己-2,5-二烯酮 | 市售,CAS 599-52-0 | >97% |
如无特别说明,以下实施例中使用的其他原料和试剂均为市售。
以下准备实施例1-5以及准备对比例1用于制备不同的负载型催化剂。
【准备实施例1】
取111.8g二氧化硅,20℃下用300mL 0.1mol/L的稀盐酸浸泡2h,用去离子水反复清洗后在70℃下烘干,得到活化载体。
将30g二水合氯化铜、13.2g硫酸铬和上述活化载体加入行星式球磨机中混合充分。结束后取出,于400℃下焙烧2h,破碎、成型后,得到催化剂1。
【准备实施例2】
取106.9g 4A分子筛,25℃下用300mL 0.1mol/L的稀盐酸浸泡2h,用去离子水反复清洗后在75℃下烘干,得到活化载体。
将35g五水合硫酸铜、13.07g六水合氯化铬和上述活化载体加入行星式球磨机中混合充分。结束后取出,于500℃下焙烧3h,破碎、成型后,得到催化剂2。
【准备实施例3】
取161.65g中性氧化铝,25℃下用300mL 0.1mol/L的稀盐酸浸泡2h,用去离子水反复清洗后在75℃下烘干,得到活化载体。
将33g醋酸铜、18.61g九水合硝酸铬和上述活化载体加入行星式球磨机中混合充分。结束后取出,于450℃下焙烧4h,破碎、成型后,得到催化剂3。
【准备实施例4】
取91.97g二氧化硅,30℃下用300mL 0.1mol/L的稀盐酸浸泡2h,用去离子水反复清洗后在75℃下烘干,得到活化载体。
将40g碳酸铜、24.1g六水合氯化铬和上述活化载体加入行星式球磨机中混合充分。结束后取出,于550℃下焙烧5h,破碎、成型后,得到催化剂4。
【准备实施例5】
取133.62g碳纳米管,25℃下用300mL 0.1mol/L的稀盐酸浸泡2h,用去离子水反复清洗后在80℃下烘干,得到活化载体。
将35g五水合硫酸铜、21.44g六水合磷酸铬和上述活化载体加入行星式球磨机中混合充分。结束后提取出,于480℃下焙烧6h,破碎、成型后,得到催化剂5。
【准备对比例1】
按照与实施例1相同的方法制备催化剂,区别只在于,不加硫酸铬。将所得催化剂编号为催化剂D1。
以下实施例1-5以及对比例1用于通过不同方案合成三氯蔗糖-6-乙酯。
【实施例1】
将催化剂1(4.61g)、蔗糖-6-乙酯(115.24g,0.3mol)和六氯环己-2,5-二烯酮(270.7g,0.9mol)加入装配有机械搅拌器、热电偶、冷凝器的反应釜中,之后加入692g DMF溶剂并开启搅拌,随后开启热电偶进行程序升温,在1小时内升温至70℃并保温5小时,反应结束后过滤除去固体催化剂,分离出反应液,将反应液蒸馏除溶剂,再将所得的粗产品在乙酸乙酯中热结晶,得到白色固体的产物三氯蔗糖-6-乙酯。
1H NMR(400MHz,CDCl3):δ5.03(d,J=7.0Hz,1H),4.51(t,J=7.2Hz,2H),4.34(dd,J=11.2,7.0Hz,1H),4.14(dd,J=7.2,6.0Hz,1H),4.09(dd,J=11.2,6.2Hz,1H),3.97(d,J=7.0Hz,1H),3.62-3.78(m,9H),3.60(dd,J=11.4,7.2Hz,1H),3.38(dd,J=11.4,6.0Hz,1H),2.21(s,3H).
本实施例中,原料蔗糖-6-乙酯转化率为97.8%,产物三氯蔗糖-6-乙酯的选择性为91.7%。
【实施例2】
将催化剂2(6.91g)、蔗糖-6-乙酯(115.24g,0.3mol)和六氯环己-2,5-二烯酮(288.75g,0.96mol)加入装配有机械搅拌器、热电偶、冷凝器的反应釜中,之后加入925gDMF溶剂并开启搅拌,随后开启热电偶进行程序升温,在2小时内升温至85℃并保温3小时,反应结束后过滤除去固体催化剂,分离出反应液,将反应液蒸馏除溶剂,再将所得的粗产品在乙酸乙酯中热结晶,得到白色固体的产物三氯蔗糖-6-乙酯。
本实施例中,原料蔗糖-6-乙酯转化率为99%,产物三氯蔗糖-6-乙酯的选择性为93.6%。
【实施例3】
将催化剂3(3.46g)、蔗糖-6-乙酯(115.24g,0.3mol)和六氯环己-2,5-二烯酮(333.87g,1.11mol)加入装配有机械搅拌器、热电偶、冷凝器的反应釜中,之后加入1150gDMF溶剂并开启搅拌,随后开启热电偶进行程序升温,在1.5小时内升温至80℃并保温3小时,反应结束后过滤除去固体催化剂,分离出反应液,将反应液蒸馏除溶剂,再将所得的粗产品在乙酸乙酯中热结晶,得到白色固体的产物三氯蔗糖-6-乙酯。
本实施例中,原料蔗糖-6-乙酯转化率为98.5%,产物三氯蔗糖-6-乙酯的选择性为92.4%。
【实施例4】
将催化剂4(8.07g)、蔗糖-6-乙酯(115.24g,0.3mol)和六氯环己-2,5-二烯酮(360.94g,1.2mol)加入装配有机械搅拌器、热电偶、冷凝器的反应釜中,之后加入1380gDMF溶剂并开启搅拌,随后开启热电偶进行程序升温,在2.5小时内升温至90℃并保温2小时,反应结束后过滤除去固体催化剂,分离出反应液,将反应液蒸馏除溶剂,再将所得的粗产品在乙酸乙酯中热结晶,得到白色固体的产物三氯蔗糖-6-乙酯。
本实施例中,原料蔗糖-6-乙酯转化率为99%,产物三氯蔗糖-6-乙酯的选择性为91.5%。
【实施例5】
将催化剂5(11.52g)、蔗糖-6-乙酯(115.24g,0.3mol)和六氯环己-2,5-二烯酮(451.17g,1.5mol)加入装配有机械搅拌器、热电偶、冷凝器的反应釜中,之后加入920g DMF溶剂并开启搅拌,随后开启热电偶进行程序升温,在3小时内升温至75℃并保温2小时,反应结束后过滤除去固体催化剂,分离出反应液,将反应液蒸馏除溶剂,再将所得的粗产品在乙酸乙酯中热结晶,得到白色固体的产物三氯蔗糖-6-乙酯。
本实施例中,原料蔗糖-6-乙酯转化率为96.5%,产物三氯蔗糖-6-乙酯的选择性为90.2%。
【对比例1】
按照与实施例1基本相同的方法制备三氯蔗糖-6-乙酯,区别仅在于,将催化剂1替换为催化剂D1。
反应后分析得知,原料蔗糖-6-乙酯转化率为97.1%,产物三氯蔗糖-6-乙酯的选择性为72.3%。
以上所述仅是本发明的优选实施方式,应当指出,对于本领域技术的普通技术人员,在不脱离本发明方法的前提下,还可以做出若干改进和补充,这些改进和补充也应视为本发明的保护范围。
Claims (7)
1.一种三氯蔗糖-6-乙酯的制备方法,其特征在于,包括在负载型催化剂的作用下,使蔗糖-6-乙酯和六氯环己-2,5-二烯酮在溶剂中发生选择性氯化反应,生成三氯蔗糖-6-乙酯;
所述负载型催化剂表示为Cu-Cr/X,包括Cu主催化剂、Cr助催化剂以及X载体,其中,X载体选自活性炭、碳纳米管、分子筛、中性氧化铝、二氧化硅中的一种或多种,优选4A分子筛、二氧化硅中的一种或多种。
2.根据权利要求1所述的三氯蔗糖-6-乙酯的制备方法,其特征在于,所述负载型催化剂中,Cu/Cr含量比为1:(0.3-0.6),优选1:(0.3-0.4),以金属元素摩尔比计;
优选地,所述负载型催化剂中,载体质量为Cu元素质量的8-15倍,优选10-14倍。
3.根据权利要求1或2所述的三氯蔗糖-6-乙酯的制备方法,其特征在于,所述负载型催化剂的用量,相对于蔗糖-6-乙酯为3-10wt%,优选4-7wt%。
4.根据权利要求1-3任一项所述的三氯蔗糖-6-乙酯的制备方法,其特征在于,所述蔗糖-6-乙酯和六氯环己-2,5-二烯酮的摩尔比为1:(3-5),优选1:(3-4)。
5.根据权利要求1-4任一项所述的三氯蔗糖-6-乙酯的制备方法,其特征在于,所述溶剂为DMF和/或DMAC;
优选地,所述溶剂的用量是蔗糖-6-乙酯质量的6-12倍。
6.根据权利要求1-5任一项所述的三氯蔗糖-6-乙酯的制备方法,其特征在于,反应采用程序升温,在1-3小时内升温至70-90℃并保温反应2-5小时。
7.根据权利要求1-6任一项所述的三氯蔗糖-6-乙酯的制备方法,其特征在于,反应结束后,蒸馏除去溶剂,将粗产品通过重结晶提纯,得到三氯蔗糖-6-乙酯。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311675635.7A CN117624261A (zh) | 2023-12-08 | 2023-12-08 | 一种三氯蔗糖-6-乙酯的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311675635.7A CN117624261A (zh) | 2023-12-08 | 2023-12-08 | 一种三氯蔗糖-6-乙酯的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN117624261A true CN117624261A (zh) | 2024-03-01 |
Family
ID=90023217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311675635.7A Pending CN117624261A (zh) | 2023-12-08 | 2023-12-08 | 一种三氯蔗糖-6-乙酯的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117624261A (zh) |
-
2023
- 2023-12-08 CN CN202311675635.7A patent/CN117624261A/zh active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3755423A (en) | Process for preparing an unsaturated glycol diester | |
JPH039092B2 (zh) | ||
CN113234004A (zh) | 一种布瓦西坦的新型制备工艺 | |
CN111499529B (zh) | 一种紫外线吸收剂UVA Plus的合成方法 | |
CN117624261A (zh) | 一种三氯蔗糖-6-乙酯的制备方法 | |
JPH07118201A (ja) | 2,6−ナフタレンジカルボン酸の精製方法 | |
FI74276C (fi) | Ett nytt foerfarande foer framstaellning av 5h-dibenso-(b, f)-azepin. | |
CN113717132B (zh) | 一种抗癫痫药物的关键中间体及其制备方法 | |
CN111548376B (zh) | 一种制备三氯蔗糖-6-乙酯的方法 | |
JPH083081A (ja) | 1,1,1,4,4,4−ヘキサフルオロブタンの液相製造法 | |
JPH01193246A (ja) | 2,3―ジクロロピリジンの製造法 | |
CN114163380A (zh) | 阿伐可泮中间体及其制备方法和用途 | |
JPH0149334B2 (zh) | ||
JP4032220B2 (ja) | 脂環式テトラカルボン酸化合物及びその製造法 | |
JPH01294643A (ja) | 含酸素化合物の製造方法 | |
US5214175A (en) | Process for the synthesis of monohaloalkylferrocenes and 4-chlorobutylferrocene | |
US4308211A (en) | Process for the preparation of anthraquinone | |
CN113387804B (zh) | 乙酸α-细辛醇酯与α-细辛醇的合成方法 | |
JPH06247918A (ja) | フェニルベンズアミド誘導体の製造方法 | |
JP2002069031A (ja) | 高純度ピロメリット酸および高純度無水ピロメリット酸の製造方法 | |
JPH09227568A (ja) | ヘリオキサンチンの製造法 | |
CN117623901A (zh) | 一种对苯丁氧基苯甲酸的制备方法 | |
CN115611739A (zh) | 一种苯培酸中间体的制备方法及其中间体 | |
JPS6144856A (ja) | フエニルアセトアルデヒド誘導体 | |
JPH02121946A (ja) | コハク酸の連続製造法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |