TW200922914A - Improved process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)phenoxy)propionic acid esters - Google Patents
Improved process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)phenoxy)propionic acid esters Download PDFInfo
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- TW200922914A TW200922914A TW097140617A TW97140617A TW200922914A TW 200922914 A TW200922914 A TW 200922914A TW 097140617 A TW097140617 A TW 097140617A TW 97140617 A TW97140617 A TW 97140617A TW 200922914 A TW200922914 A TW 200922914A
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- Prior art keywords
- propionic acid
- phenoxy
- polar aprotic
- aprotic solvent
- fluorophenoxy
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- ROBSGBGTWRRYSK-SNVBAGLBSA-N (2r)-2-[4-(4-cyano-2-fluorophenoxy)phenoxy]propanoic acid Chemical class C1=CC(O[C@H](C)C(O)=O)=CC=C1OC1=CC=C(C#N)C=C1F ROBSGBGTWRRYSK-SNVBAGLBSA-N 0.000 title abstract description 5
- -1 cyhalofop ester Chemical class 0.000 claims abstract description 16
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003880 polar aprotic solvent Substances 0.000 claims abstract description 12
- BTBFCBQZFMQBNT-UHFFFAOYSA-N 3,4-difluorobenzonitrile Chemical compound FC1=CC=C(C#N)C=C1F BTBFCBQZFMQBNT-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003444 phase transfer catalyst Substances 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 150000001350 alkyl halides Chemical class 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 14
- 229910052783 alkali metal Inorganic materials 0.000 claims description 10
- 238000004821 distillation Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 9
- 239000011541 reaction mixture Substances 0.000 claims description 9
- 238000009835 boiling Methods 0.000 claims description 7
- 235000019260 propionic acid Nutrition 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 239000012044 organic layer Substances 0.000 claims description 6
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 230000029936 alkylation Effects 0.000 claims description 2
- 238000005804 alkylation reaction Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000012267 brine Substances 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 3
- 239000000126 substance Substances 0.000 claims 3
- FUPGQEMJIGUBGO-UHFFFAOYSA-N 2-(4-phenylphenoxy)propanoic acid Chemical compound C1=CC(OC(C)C(O)=O)=CC=C1C1=CC=CC=C1 FUPGQEMJIGUBGO-UHFFFAOYSA-N 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 claims 1
- 229910021653 sulphate ion Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000004907 flux Effects 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- AQIHDXGKQHFBNW-UHFFFAOYSA-N 2-(4-hydroxyphenoxy)propanoic acid Chemical compound OC(=O)C(C)OC1=CC=C(O)C=C1 AQIHDXGKQHFBNW-UHFFFAOYSA-N 0.000 abstract 1
- 230000002152 alkylating effect Effects 0.000 abstract 1
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 12
- 239000010410 layer Substances 0.000 description 7
- 239000012071 phase Substances 0.000 description 7
- TYIYMOAHACZAMQ-CQSZACIVSA-N Cyhalofop-butyl Chemical compound C1=CC(O[C@H](C)C(=O)OCCCC)=CC=C1OC1=CC=C(C#N)C=C1F TYIYMOAHACZAMQ-CQSZACIVSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000005502 Cyhalofop-butyl Substances 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- AQIHDXGKQHFBNW-ZCFIWIBFSA-N (2r)-2-(4-hydroxyphenoxy)propanoic acid Chemical compound OC(=O)[C@@H](C)OC1=CC=C(O)C=C1 AQIHDXGKQHFBNW-ZCFIWIBFSA-N 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 239000000010 aprotic solvent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- XLLIQLLCWZCATF-UHFFFAOYSA-N 2-methoxyethyl acetate Chemical compound COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 2
- 150000008041 alkali metal carbonates Chemical class 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- SHFJWMWCIHQNCP-UHFFFAOYSA-M hydron;tetrabutylazanium;sulfate Chemical compound OS([O-])(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC SHFJWMWCIHQNCP-UHFFFAOYSA-M 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- DIIIISSCIXVANO-UHFFFAOYSA-N 1,2-Dimethylhydrazine Chemical compound CNNC DIIIISSCIXVANO-UHFFFAOYSA-N 0.000 description 1
- MPPPKRYCTPRNTB-UHFFFAOYSA-N 1-bromobutane Chemical compound CCCCBr MPPPKRYCTPRNTB-UHFFFAOYSA-N 0.000 description 1
- RNHWYOLIEJIAMV-UHFFFAOYSA-N 1-chlorotetradecane Chemical compound CCCCCCCCCCCCCCCl RNHWYOLIEJIAMV-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- VJGNLOIQCWLBJR-UHFFFAOYSA-M benzyl(tributyl)azanium;chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CC1=CC=CC=C1 VJGNLOIQCWLBJR-UHFFFAOYSA-M 0.000 description 1
- KFSZGBHNIHLIAA-UHFFFAOYSA-M benzyl(trimethyl)azanium;fluoride Chemical compound [F-].C[N+](C)(C)CC1=CC=CC=C1 KFSZGBHNIHLIAA-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229930195712 glutamate Natural products 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000012451 post-reaction mixture Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 230000006340 racemization Effects 0.000 description 1
- 239000012066 reaction slurry Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- ZXUCBXRTRRIBSO-UHFFFAOYSA-L tetrabutylazanium;sulfate Chemical compound [O-]S([O-])(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC.CCCC[N+](CCCC)(CCCC)CCCC ZXUCBXRTRRIBSO-UHFFFAOYSA-L 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
- C07C255/54—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and etherified hydroxy groups bound to the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/07—Optical isomers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
200922914 九、發明說明: 【發明所屬之技術領域3 本發明係有關於一種用於R-(+)-2-(4-(4-氰-2-氟苯氧) 苯氧)丙酸酯之製造的改良方法。 5 【先前技術】 美國專利第4,897,481號案揭示一種使於製造 R-(+)-2-(4-(4-氰-2-氟苯氧)苯氧)丙酸酯期間發生之外消旋 化之量達最小之方法,包含於極性溶劑(特別是二甲基亞 砜),於鹼金屬碳酸鹽存在中,使R-(+)-2-(4-羥基苯氧)丙酸 10 之鹼金屬鹽與3,4-二氟苯并-腈(3,4-DFBN)接觸,及其後使 形成之R-(+)-2-(4-(4-鼠-2 -氣苯氧)苯氧)丙酸以烧基1¾化物 酉旨化。 C發明内容3 本發明係有關於一種用於如下化學式之R-(+)-2-(4-(4-15 氰-2-氟苯氧)苯氧)丙酸酯之製造的改良方法,
其中,R代表CrC8烷基 包含: a)藉由於具有至少2之偶極矩或至少7之介電常數且具 20 有少於175 °C之正常沸點之極性非質子性溶劑,使 R-(+)-2-(4-羥基苯氧)丙酸與至少2當量之鹼金屬碳酸鹽接 觸形成R-(+)-2-(4-羥基苯氧)-丙酸之二(鹼金屬鹽); 5 200922914 b) 錯由使步驟a)之R-(+)-2-(4-經基-苯氧)丙酸之二(驗 金屬鹽)反應混合物與3,4-二氟苯并腈偶合形成 R-(+)-2-(4-(4-氰-2-氟苯氧)苯氧)丙酸鹼金屬鹽; c) 藉由使步驟b)之R-(+)-2-4-(4-氰-2-氟苯氧)苯氧)-丙 5 酸鹼金屬鹽反應混合物與烷基函化物烷基化形成 R-(+)-2-(4-(4-鼠-2-氣本氧)本氧)丙酸烧基酉旨, d) 藉由添加事先製備之乾燥熔融之R-(+)-2-(4-(4-氰-2-氟苯氧)苯氧)丙酸烷基酯至步驟c)之反應混合物及藉由自 混合物蒸餾極性非質子性溶劑,或藉由自混合物蒸餾極性 10 非質子性溶劑並且攪拌而移除及回收極性非質子性之溶 劑; e) 藉由以溫水萃取蒸德底層物及使水性鹽水與有機層 分離而自步驟d)之蒸餾底層物移除鹽;及 f) 藉由於減壓下蒸餾步驟e)之有機層而移除諸如水及 15 未反應之3,4-二氟苯并腈之低沸點組份。
I:實施方式:J 於本發明之一較佳實施例,步驟b)之使R-(+)-2-(4-羥基 苯氧)丙酸之二(鹼金屬鹽)與3,4-DFBN之偶合反應係於相 轉移催化劑存在中實施。 20 於此文件中,休其它陳述外,所有溫度係以攝氏溫度 示之,且所有百分率係重量百分率。 除非其它之特別限制,“烷基”一辭於此使用時係於其 範圍内包含直鏈、分支,及環狀部份。 除非其它特別限制,“鹵素”一辭與諸如“鹵基”及“鹵化 200922914 物,,之衍生用辭於此使用時係指氯、溴,及碘。 ‘‘鹼金屬”一辭於此使用時係指週期表第ia族之金屬。 較佳之驗金屬係鋰、鈉,及鉀。 極性非貝子性溶劑辭於此使_係㈣指具有足 5夠極性而具有至少2之偶極矩或至少7之介電常數及具有足 夠揮發性而具有少於175〇C之正常沸點之極性非質子性溶 劑。此等極性非質子性溶劑包含,例如,乙腈、丙腈、丙 鲷、甲乙酮、甲丙酮、甲異丁_、2_甲氧基乙基乙酸醋、 二甲基曱醯、二甲基乙_等,且乙腈係特別佳。 10 “相轉移催化劑欲意指藉由使反應物從-相轉 移至另-者而催化反應之材料。適用於本方法之相轉移催 化劑包含季知及鱗鹽。適合之季錄及鱗鹽正常係具有至少4 個碳至個碳,較佳係4個碳至16個碳之聚_含量。敍鹽 由於成本及商業利用性現今係優於鱗鹽。適合之催化劑係 15四甲基漠化敍、四乙基氣化錄、甲基三丁基氣化録、四丁 基硫酸氫銨、苯甲基三丁基氯化銨、苯甲基三甲基氟化銨、 雙-(四曱基銨)草酸鹽、十二縣三甲㈣麟、四丁基硫 酸銨、甲基二苯基演化鱗、三丁基十四院基氣化鱗、十四 烷基氯化鱗等。 20 R-㈩_2_(4-(4-氰I氟笨氡)苯氧)丙酸丁基酯係以常見 名稱cyhalofop-bmyl而知且以商品名Cleaner™及
Clincher’Dow Agr〇SCiences LLC之商標)出售之一種光學 活性稻米除草劑。 於此方法之第-步驟,R_(+)_2_⑷經基苯氧)丙酸係以 7 200922914 至少2當量之驗金屬碳酸鹽中和。典型上,此驗金屬碳酸趨 係於極性非質子性溶射呈_。對此㈣緩慢添加於= 性非質子性溶劑内之R_(+)_2_(4,基苯氧)苯氧)兩酸之加 熱溶液。反應於50柳(:之溫度進行,且添加速率及思合強 度被控制於使料_充份懸浮且⑶2之釋放係可偏 1之 速率。 、二 於此方法之第二步驟,0.^」當量之34dfb_於 50-80°C之溫度添加至第一步驟之反應混合物。然後,此溫 度上升至12G_15GT ’且於此溫度維持至反應物轉化成 10 R-㈩-2-(4-(4-氰-2-氟苯氧)笨氧)_丙酸鹼金屬鹽為止。 3’4-DFBN可以熔融或以於極性非質子性溶劑内之溶液添 加。一般較佳係添加催化量,典型上係以3,4_DFBN重量為 基準計係1至5重量%,之相轉移催化劑至此步驟。雖然此 步驟可於混合物之沸點進行,但有利地係於高溫進行此反 15應,其會造成最南達1〇〇碎/平方英忖規格(psig) (790 kPa) 之壓力。 於此方法之第三步驟,1 ·〇至1 ·2當量之烷基鹵化物添加 至第二步驟之反應混合物,且溫度維持於80 - 110。C,且於 此溫度維持至R-(+)-2-(4-(4-氰-2-氟苯氧)苯氧)丙酸鹼金屬 20鹽轉化成相對應之烷基酯為止。雖然此步驟係於混合物之 沸點進行’但再次有利地係於高溫進行此反應,其造成最 高達50psig(446 kPa)之壓力。 於此方法之第四步驟,極性非質子性溶劑係藉由蒸餾 自反應混合物移除,且循環至其後之批次物。當步驟3之燒 8 200922914 基化反應完成時’反應混合物被冷卻,且約125至250重量 %(以3,4-DFBN之重量為基準計)之事先製備之熔融 r_(+)_2-(4-(4-氰-2-氟苯氧)苯氧)丙酸烷基酯係被添加作為 助熔劑以改良鹽於蒸顧期間之懸浮。混合物於減壓蒸鶴至 5接近所有極性非質子性溶液於塔頂移除為止。典型上,蒸
餾係於50 - 350 mm Hg(6_7 - 46.7 kPa)之減壓及90-130。C 之底層物溫度實施。助溶劑可於一部份之極性非質子性溶 劑被移除後添加。選擇性地,若攪拌足以使鹽保持懸浮, 則無需助熔劑。 10 於此方法之第五步驟,第4步驟之蒸鶴底層物被冷卻至 50-70 C,且足夠溫之水添加至後蒸館於漿,以使水性相呈 30-35%之驗金屬鹵化物鹽溶液。有機層被傾析,且再次於 50-70° C以額外之相似量之溫水清洗,且層被再次分離。 於此方法之最後步驟,主要由步驟5萃取而得之熔融之 15 R-(+)-2_(4-(4-氰_2_氟苯氧)苯氧)丙酸烷基酯組成之有機層 係藉由於減壓下蒸餾有機層而移除殘餘水及任何剩餘之 3,4-DFBN而乾燥。典型上,有機層於1〇_1〇〇 Hg(1.3 -13·3 kPa)之減壓加熱至9〇_13〇〇c之溫度。經乾燥之熔融 R-(+)-2-(4-(4-氰-2-氟苯氧)苯氧)丙酸烷基酯(其適於作為工 20業材料出售)可選擇性地被過濾。 下列實施例係例示本發明。 f^LL_M±lzldL4-(4-氱-2-氣茉氣)茉氣)丙酴,,τ 丁其陆 「cvhalofop-hmyi] 對裳設塔頂攪拌器、冷水冷凝器、熱偶,及控制式紅 9 200922914 外線加熱燈之250毫升(mL)底部放泄之圓底燒瓶’添加42.1 克(g)之R-(+)-2-(备基笨氧)_丙酸[maQ-酸]及71.6克之乙 骑。此混合物被授拌及加熱至75°C,此時,MAQ-酸已完全 溶解。 5 對裝設塔頂攪拌器、加熱/冷卻浴,及冷水冷凝器之1 公斤之套筒式底部放泄之圓柱形燒瓶,添加94.7克之乙 腈' 2.:53克之水,及74.7克之粉末狀碳酸鉀(-325篩目)。此 混合物被混合及加熱至5〇°C。 然後,MAQ-酸溶液於2小時期間經由Teflon®管tube 10直接自溶液燒瓶緩慢滴至K2C03於漿内。添加完全時,溫 度升至75°C,且維持1小時。 淤漿轉移至裝設塔頂攪拌器、熱偶、控制式加熱罩、 卸壓閥’及壓力計之325毫升之加壓容器。然後,對此淤漿 添加33.1克之3,4-DFBN。容器被密封,打始混合,然後, 15 混合物加熱至135°C持續7小時。壓力達53 psig(467kPa)。 容器冷卻至60°C,打開,且添加35.1克之正丁基溴。 容器被再次密封,開始混合,然後,混合物加熱至l〇〇〇c持 續6小時。壓力達19 psig(232 kPa)。 容器冷卻至60〇C,且内容物轉移至裝設塔頂攪拌器、 20熱偶、控制式加熱罩、具冷卻水冷凝器及250毫升之圓底接 收器之6英吋Vigreux管柱、具有125毫升之圓底接收之二級 乾冰/丙酿I冷凝器,及具可變式真空控制之真空泵之500毫 升之3頌之底部放泄圓底燒瓶。’對此淤漿,添加61.9克之 事先製得之cyhalofop-butyl(分析=96%)。開始混合,真空 200922914 被拉升至200 mm Hg(26.7 kPa),且施加熱以移除乙腈。當 底層物之溫度達80°C時,真空被緩慢降至6〇 mm Hg(8 kPa)。當底層物之溫度達120°C時,停止蒸館。 淤漿冷卻至60°C,且添加147克之50〇c之水。二相混合 5 物被授掉15分鐘,同時使溫度維持於5〇°c。停止混合,且 形成之二相沈降15分鐘。下層之水性含鹽相被排放,對上 層相添加105克之50°C之水,且混合物再次搜拌15分鐘,同 時使溫度維持於50°C。停止混合,且形成之二相混合物沈 降15分鐘。下層之Cyhalofop-butyl相被排放且置於一旁,且 10上水性層被移除。cyhalofop-butyl相被送回燒瓶内。真空接 升至60mmHg(8kPa),且施加熱至蒸餾掉夾帶之水。當溫 度達120°C時,停止蒸餾。 此最終產物之質量係141克(分析係96%之 cyhalofop-butyl), 構成92%之有效產率。 15 尺(+)/8(_)£^1131〇£〇卩-131^1異構物之比例係98.5/1.5。 實施例2:於舟驟b使用催化劑「四甲基氣化鍵(ΤΜΑ〇·| δΧ備係裝設塔頂授拌器、熱偶、加熱罩、卸壓裝置, 及壓力計之600毫升之加壓容器。對此容器,添加135克之 事先製備之R-(+)-2-(4-經基苯氧)丙酸二鉀鹽、丨52克之乙 20腈、39.8克之3,4_DFBN,及1.67克之TMAC。容器被密封, 且開始混合。容器加熱至12〇。(:,且維持7小時。壓力達〜3〇 psig。 容器冷卻至〜60°C,打開,且添加42.4克之正丁基溴。 容器被再次密封,且開始混合,容器加熱至85。c且維持6 200922914 小時。壓力達〜8 psig (156.5 kPa)。 形成之後反應淤漿(質量=371克)被收集及分析。產物 分析尺-(+)〇>^131〇£〇卩-131^1係21.9%,構成94.9%之未經隔離 之產率(規度化成97.0%)。R(+)/S㈠cyhalofop-butyl異構物之 5 比例於後反應混合物内係99.7/0.3。 【圖式簡單說明J (無) 【主要元件符號說明】 (無) 12
Claims (1)
- 200922914 十、申請專利範圍·· Ϊ· 一種用於如下化學式 两酸酿之製造的改良方法 ^-2驾氧)苯氧) A CH, I •°CHC〇2R 其中,R代表Crc8烷基 包含: 2由於具有至少2之偶極矩或至少7之介電常數且具 v於175 C之正常沸點之極性非質子性溶劑,使 10 15 ·(+)邻·縣苯氧)丙酸與至少2當量之驗金屬破酸鹽 (+)_2-(4_經基苯氧)丙酸之二(驗金屬鹽); 精由使步驟a)之吵)·2倾基、笨氧)丙酸之二(驗金 屬鹽)反應混合物與3,4_二氧笨并腈偶合形成 Μ+)_2·(4_(4'氰錢苯氧)苯·酸驗金屬鹽; c) 藉由使步驟咐叫啦冰…氰-2-氟苯氧)苯氧)_丙酸 鹼金屬鹽反應混合物與烷基鹵化物烷基化形成 R (+)_2-(4_(4·紙_2_氟笨氧)苯氧)丙酸烷基酯; d) 藉由添加事先製備之乾燥熔融之R-(+)-2-(4-(4-氰-2-氟苯氧)苯氧)丙酸烷基酯至步驟c)之反應混合物及藉由 自該混合物蒸餾該極性非質子性溶劑,或藉由自該混合 物洛館5亥極性非質子性溶劑並且攪拌而移除及回收該 極性非質子性之溶劑; e) 藉由以溫水萃取蒸餾底層物及使水性鹽水與有機層 13 20 200922914 分離而自步驟d)之蒸餾底層物移除鹽;及 〇藉由於減壓下蒸餾步驟e)之有機層而移除諸如水及未 反應之3,4-二氟苯并腈之低沸點組份。 2.如申請專利範圍第1項之方法,其中,該R-(+)-2-(4-羥基 5 苯氧)丙酸之二鹼金屬鹽與3,4-二氟苯并腈之偶合係於相 轉移催化劑存在中實施。 14 200922914 七、指定代表圖: (一) 本案指定代表圖為:第()圖。(無) (二) 本代表圖之元件符號簡單說明: 八、本案若有化學式時,請揭示最能顯示發明特徵的化學式:
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GB0322917D0 (en) * | 2003-09-30 | 2003-11-05 | Syngenta Ltd | Chemical process |
WO2008079838A1 (en) | 2006-12-20 | 2008-07-03 | Astrazeneca Ab | Compounds and uses thereof |
KR101546110B1 (ko) | 2007-10-24 | 2015-08-20 | 다우 아그로사이언시즈 엘엘씨 | R-(+)-2-(4-(4-시아노-2-플루오로페녹시)페녹시)프로피온산 에스테르의 개선된 제조 방법 |
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2008
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- 2008-10-14 CN CN201410535485.4A patent/CN104387294A/zh active Pending
- 2008-10-14 JP JP2010531131A patent/JP5444237B2/ja active Active
- 2008-10-14 WO PCT/US2008/079838 patent/WO2009055278A1/en active Application Filing
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Also Published As
Publication number | Publication date |
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KR101546110B1 (ko) | 2015-08-20 |
WO2009055278A1 (en) | 2009-04-30 |
KR20100075535A (ko) | 2010-07-02 |
CN101835742A (zh) | 2010-09-15 |
US20090112015A1 (en) | 2009-04-30 |
US9598356B2 (en) | 2017-03-21 |
CN104387294A (zh) | 2015-03-04 |
CO6331331A2 (es) | 2011-10-20 |
JP5444237B2 (ja) | 2014-03-19 |
BRPI0818376A2 (pt) | 2015-04-14 |
US8071804B2 (en) | 2011-12-06 |
TWI436972B (zh) | 2014-05-11 |
JP2011502127A (ja) | 2011-01-20 |
US20110152560A1 (en) | 2011-06-23 |
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