JPH0425261B2 - - Google Patents
Info
- Publication number
- JPH0425261B2 JPH0425261B2 JP13321083A JP13321083A JPH0425261B2 JP H0425261 B2 JPH0425261 B2 JP H0425261B2 JP 13321083 A JP13321083 A JP 13321083A JP 13321083 A JP13321083 A JP 13321083A JP H0425261 B2 JPH0425261 B2 JP H0425261B2
- Authority
- JP
- Japan
- Prior art keywords
- acetamide
- bromo
- chloro
- acid amide
- acid
- 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.)
- Expired
Links
- 239000002253 acid Substances 0.000 claims description 27
- 150000007513 acids Chemical class 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 14
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- 150000001734 carboxylic acid salts Chemical class 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 8
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052783 alkali metal Inorganic materials 0.000 claims description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 5
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052794 bromium Chemical group 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 150000002431 hydrogen Chemical group 0.000 claims description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 85
- 125000001246 bromo group Chemical group Br* 0.000 description 30
- 150000001408 amides Chemical class 0.000 description 14
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 9
- -1 alkali metal salts Chemical class 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 235000011054 acetic acid Nutrition 0.000 description 3
- AOGQPLXWSUTHQB-UHFFFAOYSA-N hexyl acetate Chemical compound CCCCCCOC(C)=O AOGQPLXWSUTHQB-UHFFFAOYSA-N 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000001632 sodium acetate Substances 0.000 description 3
- 235000017281 sodium acetate Nutrition 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 3
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- INQYKMBFJLYPMV-UHFFFAOYSA-N [2-(methylamino)-2-oxo-1-phenylethyl] acetate Chemical compound CNC(=O)C(OC(C)=O)C1=CC=CC=C1 INQYKMBFJLYPMV-UHFFFAOYSA-N 0.000 description 2
- 150000001243 acetic acids Chemical class 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 125000005907 alkyl ester group Chemical group 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 150000004714 phosphonium salts Chemical class 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VTOOAIHVOXXCFP-UHFFFAOYSA-N (2-anilino-2-oxoethyl) acetate Chemical compound CC(=O)OCC(=O)NC1=CC=CC=C1 VTOOAIHVOXXCFP-UHFFFAOYSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- CVDHWZUHWJHWBE-UHFFFAOYSA-N 2-hydroxy-N,N-diphenylacetamide Chemical compound C=1C=CC=CC=1N(C(=O)CO)C1=CC=CC=C1 CVDHWZUHWJHWBE-UHFFFAOYSA-N 0.000 description 1
- JNQVLKWNKVMFBN-UHFFFAOYSA-N 2-hydroxy-n,n-dimethylacetamide Chemical compound CN(C)C(=O)CO JNQVLKWNKVMFBN-UHFFFAOYSA-N 0.000 description 1
- WFAFGNCZWMJZCK-UHFFFAOYSA-N 2-hydroxy-n-methylacetamide Chemical compound CNC(=O)CO WFAFGNCZWMJZCK-UHFFFAOYSA-N 0.000 description 1
- DGQQIXATVKCUOG-UHFFFAOYSA-N 2-hydroxy-n-methylbutanamide Chemical compound CCC(O)C(=O)NC DGQQIXATVKCUOG-UHFFFAOYSA-N 0.000 description 1
- BNWQAQKMWJQTQU-UHFFFAOYSA-N 2-hydroxy-n-methylpropanamide Chemical compound CNC(=O)C(C)O BNWQAQKMWJQTQU-UHFFFAOYSA-N 0.000 description 1
- PJFNNMFXEVADGK-UHFFFAOYSA-N 2-hydroxy-n-phenylacetamide Chemical compound OCC(=O)NC1=CC=CC=C1 PJFNNMFXEVADGK-UHFFFAOYSA-N 0.000 description 1
- RXAVHODYCLIQCW-UHFFFAOYSA-N 2-hydroxy-n-phenylbutanamide Chemical compound CCC(O)C(=O)NC1=CC=CC=C1 RXAVHODYCLIQCW-UHFFFAOYSA-N 0.000 description 1
- NXHFPNVCAZMTSG-UHFFFAOYSA-N 2-hydroxy-n-phenylpropanamide Chemical compound CC(O)C(=O)NC1=CC=CC=C1 NXHFPNVCAZMTSG-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 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
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-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
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- KQMHMCWLPOEEFV-UHFFFAOYSA-N [2-(diethylamino)-2-oxoethyl] acetate Chemical compound CCN(CC)C(=O)COC(C)=O KQMHMCWLPOEEFV-UHFFFAOYSA-N 0.000 description 1
- CWYWDHYMHWDYPR-UHFFFAOYSA-N [2-(dimethylamino)-2-oxoethyl] acetate Chemical compound CN(C)C(=O)COC(C)=O CWYWDHYMHWDYPR-UHFFFAOYSA-N 0.000 description 1
- NYTLADYGYDCTDD-UHFFFAOYSA-N [2-(ethylamino)-2-oxoethyl] acetate Chemical compound CCNC(=O)COC(C)=O NYTLADYGYDCTDD-UHFFFAOYSA-N 0.000 description 1
- NWKGXAKYDIJMTQ-UHFFFAOYSA-N [2-(methylamino)-2-oxoethyl] acetate Chemical compound CNC(=O)COC(C)=O NWKGXAKYDIJMTQ-UHFFFAOYSA-N 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 125000004423 acyloxy group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- ZWCRLFIZIYVXMG-UHFFFAOYSA-N ethyl 2-acetyloxyacetate Chemical compound CCOC(=O)COC(C)=O ZWCRLFIZIYVXMG-UHFFFAOYSA-N 0.000 description 1
- SVBSJWKYFYUHTF-UHFFFAOYSA-N ethyl 2-butoxyacetate Chemical compound CCCCOCC(=O)OCC SVBSJWKYFYUHTF-UHFFFAOYSA-N 0.000 description 1
- ZANNOFHADGWOLI-UHFFFAOYSA-N ethyl 2-hydroxyacetate Chemical compound CCOC(=O)CO ZANNOFHADGWOLI-UHFFFAOYSA-N 0.000 description 1
- ZXONMBCEAFIRDT-UHFFFAOYSA-N ethyl 2-propoxyacetate Chemical compound CCCOCC(=O)OCC ZXONMBCEAFIRDT-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- GOQRKXBLBLOWLQ-UHFFFAOYSA-N methyl 2-acetyloxyacetate Chemical compound COC(=O)COC(C)=O GOQRKXBLBLOWLQ-UHFFFAOYSA-N 0.000 description 1
- AVVSSORVCLNBOS-UHFFFAOYSA-N methyl 2-propoxyacetate Chemical compound CCCOCC(=O)OC AVVSSORVCLNBOS-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- RZCCQWOCSZOHMQ-UHFFFAOYSA-N n,n-diethyl-2-hydroxyacetamide Chemical compound CCN(CC)C(=O)CO RZCCQWOCSZOHMQ-UHFFFAOYSA-N 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- HWVOWKVXWMUGMS-UHFFFAOYSA-N n-ethyl-2-hydroxyacetamide Chemical compound CCNC(=O)CO HWVOWKVXWMUGMS-UHFFFAOYSA-N 0.000 description 1
- TYEUXSRAMCAJCV-UHFFFAOYSA-N n-ethyl-2-hydroxybutanamide Chemical compound CCNC(=O)C(O)CC TYEUXSRAMCAJCV-UHFFFAOYSA-N 0.000 description 1
- PWHWWMHNXSWQLD-UHFFFAOYSA-N n-ethyl-2-hydroxypropanamide Chemical compound CCNC(=O)C(C)O PWHWWMHNXSWQLD-UHFFFAOYSA-N 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- MQOZAHVPTMZAFS-UHFFFAOYSA-N propyl 2-acetyloxyacetate Chemical compound CCCOC(=O)COC(C)=O MQOZAHVPTMZAFS-UHFFFAOYSA-N 0.000 description 1
- LVDAGIFABMFXSJ-UHFFFAOYSA-N propyl 2-butoxyacetate Chemical compound CCCCOCC(=O)OCCC LVDAGIFABMFXSJ-UHFFFAOYSA-N 0.000 description 1
- NORCOOJYTVHQCR-UHFFFAOYSA-N propyl 2-hydroxyacetate Chemical compound CCCOC(=O)CO NORCOOJYTVHQCR-UHFFFAOYSA-N 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- 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 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 238000007039 two-step reaction Methods 0.000 description 1
- 229940005605 valeric acid Drugs 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】
本発明は下記一般式()で示されるα−ハロ
ゲノ酢酸類と一般式()で示されるカルボン酸
塩を触媒存在下に反応させることにより、下記一
般式()で示されるアシロキシ酢酸を収率よく
製造する方法に関する。
〔但し、上記式中、Xは塩素又は臭素、R1、
R2は水素又はアルキル基、R3はOR′、NR″R
(R′はアルキル基、R″、Rは水素又はアルキル
基又はアリール基)を示す。〕
〔但し、上記式中、Rは水素又はアルキル基、
Mはアルカリ金属又はアルカリ土類金属を示す。〕
〔但し、上記式中、R1〜R3、Rは式()、
()と同じ基を示す。〕
アシロキシ酢酸類は、農薬特に除草剤の中間体
として有用である。しかして該化合物の製造法と
しては、従来、上記α−ハロゲノ酢酸類とカルボ
ン酸塩を反応させる方法が知られている。しかし
ながら、かかる方法においては、原料のα−ハロ
ゲノ酢酸類のポリマー化を防止するために4〜5
倍モルもの多量のカルボン酸塩が不可欠であるこ
と、及びかかる防止策を行つても目的物の収率が
70〜80%程度に過ぎないという問題がある。工業
的にアシロキシ酢酸類を製造する場合において、
前記の如き収率では必ずしも満足とは言えない
し、又当然未反応のカルボン酸塩を回収する操作
が必要となり、問題点が多い。
しかして本発明者は、かかる問題の解決方法と
して触媒に四級アンモニウム塩又はホスホニウム
塩を用いることにより目的物が効率よく得られる
ことを発見し、特願昭58−66133(特開昭59−
190952号公報参照)として先に出願を行つた。
ところが本発明者が更に研究を行つた結果、該
反応を行う際に特定の溶媒、即ちジメチルスルホ
キシドを使用する場合、前記触媒を特に使用しな
くとも極めて効率よく反応が進行するという意外
な事実を発見し、本発明を完成するに到つた。
本発明にいうα−ハロゲノ酢酸類とは次の一般
式で表わされるものである。
但し、該式中、Xは塩素又は臭素、R1、R2は
水素又はアルキル基、R3はOR′又はNR″R
(R′はアルキル基、R″、Rは水素又はアルキル
基又はアリール基)を示す。R1〜R3及びR′〜R
におけるアルキル基の炭素数は一般に1〜7の
間であるが、本発明はこれらに限定されるもので
はない。又、アリール基は塩素、臭素などで置換
された置換アリール基であつてもよい。かかる構
造を有する化合物としては具体的には、α−クロ
ル(又はブロム)酢酸メチル、α−クロル(又は
ブロム)酢酸エチル、α−クロル(又はブロム)
酢酸プロピル等のα−ハロゲノ酢酸のアルキルエ
ステル、又、α位が更にメチル基、エチル基等で
置換されたもの更にN−モノメチル−α−クロル
(又はブロム)酢酸アミド、N−モノエチル−α
−クロル(又はブロム)酢酸アミド、N,N−ジ
メチル−α−クロル(又はブロム)酢酸アミド、
N,N−ジエチル−α−クロル(又はブロム)酢
酸アミド、N,N−メチルエチル−α−クロル
(又はブロム)酢酸アミド、N−モノフエニル−
α−クロル(又はブロム)酢酸アミド、N,N−
メチルフエニル−α−クロル(又はブロム)酢酸
アミド、N,N−エチルフエニル−α−クロル
(又はブロム)酢酸アミド、N,N−ジフエニル
−α−クロル(又はブロム)酢酸アミド、N−モ
ノメチル−(α−クロル(又はブロム)−α−メチ
ル)酢酸アミド、N−モノメチル−(α−クロル
(又はブロム)−α−ジメチル)酢酸アミド、N−
モノエチル−(α−クロル(又はブロム)−α−メ
チル)酢酸アミド、N−モノエチル−(α−クロ
ル(又はブロム)−α−ジメチル)酢酸アミド、
N,N−ジメチル−(α−クロル(又はブロム)−
α−ジメチル)酢酸アミド、N−モノメチル−
(α−クロル(又はブロム)−α−ジエチル)酢酸
アミド、N−モノエチル−(α−クロル(又はブ
ロム)−α−ジエチル)酢酸アミド、N,N−ジ
エチル−(α−クロル(又はブロム)−α−ジエチ
ル)酢酸アミド、N−モノフエニル−(α−クロ
ル(又はブロム)−α−メチル)酢酸アミド、N
−モノフエニル−(α−クロル(又はブロム)−α
−ジメチル)酢酸アミド、N−モノフエニル−
(α−クロル(又はブロム)−α−エチル)酢酸ア
ミド、N−モノフエニル−(α−クロル(又はブ
ロム)−α−ジエチル)酢酸アミド、N,N−メ
チルフエニル−(α−クロル(又はブロム)−α−
ジメチル)酢酸アミド、N,N−メチルフエニル
−(α−クロル(又はブロム)−α−ジエチル)酢
酸アミド、N,N−エチルフエニル−(α−クロ
ル(又はブロム)−α−ジメチル)酢酸アミド、
N,N−エチルフエニル−(α−クロル(又はブ
ロム)−α−ジエチル)酢酸アミド、N,N−ジ
フエニル−(α−クロル(又はブロム)−α−ジメ
チル)酢酸アミド、N,N−ジフエニル−(α−
クロル(又はブロム)−α−ジエチル)酢酸アミ
ド等のα−ハロゲノ酢酸誘導体が挙げられる。
上記α−ハロゲノ酢酸類と反応させるカルボン
酸塩とは次の一般式で表わされるものである。
RCOOM
但し、該式中Rは水素又はアルキル基、Mはア
ルカリ土類金属を示す。Rにおけるアルキル基の
炭素数は通常1〜5のものが使用される。又アル
カリ金属、アルカリ土類金属としては一般にナト
リウム、カリウム、カルシウム、マグネシウム等
が使用され、特にアルカリ金属が好ましく用いら
れる。かかる構造を持つ化合物としては具体的に
は、蟻酸、酢酸、プロピオン酸、酪酸、吉草酸、
カプロン酸等の各々アルカリ金属塩又はアルカリ
土類金属塩等が挙げられるが、酢酸ナトリウムが
最も実用的である。かかるカルボン酸塩は普通前
記α−ハロゲノ酢酸類に対し、1〜2モルの割合
で用いられる。
本発明の最大の特徴はα−ハロゲノ酢酸類とカ
ルボン酸塩の反応を特定溶媒中で行うことにあ
る。かかる溶媒としてはジメチルスルホキシド、
N,N−ジメチルホルムアミド及びこれらの混合
溶媒が挙げられる。又、かかる特定有機溶媒に対
して等量程度までならば従来公知の他の有機溶
媒、例えばベンゼン、トルエン、キシレン等の芳
香族炭化水素系有機溶媒、ジクロロメタン、ジク
ロロエタン、クロロホルム等のハロゲン化炭化水
素系有機溶媒の他更に必要に応じて前記各種有機
溶媒と水との混合溶媒も用いることができる。
かかる特定有機溶媒を用いることにより、前述
した如く、触媒を使用せずに、前記カルボン酸の
量を少くすることができ、かつα−ハロゲノ酢酸
類のポリマー化による副生物の発生を抑制するこ
とができ、その結果、目的とするアシロキシ酢酸
類を効率的にしかも高収率で得ることができるの
である。勿論、必要であれば四級アンモニウム塩
やホスホニウム塩等の触媒を使用しても何等差支
えない。
本発明の方法を行う場合、反応温度は前記化合
物(α−ハロゲノ酢酸類、カルボン酸塩)の沸点
以下で行えば特に支障はなく、普通0〜200℃、
より好ましくは20〜120℃の範囲で行うと良好な
結果が得られる。又反応時間は、使用する化合
物、溶媒等の種類によつて異なるので限定できな
いが、通常は0.5〜24時間で終了する。反応液は
必要に応じて過、洗浄、脱水などの処理を施し
た後、減圧下にて溶媒を留去すると次記一般式で
示される本発明の目的とするところのアシロキシ
酢酸類を得ることができる。
但し、該式中R1〜R3、Rは前述したα−ハロ
ゲノ酢酸類及びカルボン酸塩に対応するものであ
る。かかる構造式で示される化合物としては、ア
セトキシ酢酸メチル、アセトキシ酢酸エチル、ア
セトキシ酢酸プロピル、プロポキシ酢酸メチル、
プロポキシ酢酸エチル、プロポキシ酢酸プロピ
ル、ブトキシ酢酸メチル、ブトキシ酢酸エチル、
ブトキシ酢酸プロピル等のアシロキシ酢酸のアル
キルエステル、更にN−モノメチル−アセトキシ
酢酸アミド、N−モノエチル−アセトキシ酢酸ア
ミド、N,N−ジメチル−アセトキシ酢酸アミ
ド、N,N−ジエチル−アセトキシ酢酸アミド、
N,N−メチルエチル−アセトキシ酢酸アミド、
N−モノフエニル−アセトキシ酢酸アミド、N,
N−メチルフエニル−アセトキシ酢酸アミド、
N,N−エチルフエニル−アセトキシ酢酸アミ
ド、N,N−ジフエニル−アセトキシ酢酸アミ
ド、N−モノメチル−(α−アセトキシ−α−メ
チル)酢酸アミド、N−モノメチル−(α−アセ
トキシ−α−ジメチル)酢酸アミド、N−モノエ
チル−(α−アセトキシ−α−メチル)酢酸アミ
ド、N−モノエチル−(α−アセトキシ−α−ジ
メチル)酢酸アミド、N,N−ジメチル−(α−
アセトキシ−α−ジメチル)酢酸アミド、N−モ
ノメチル−(α−アセトキシ−α−ジエチル)酢
酸アミド、N−モノエチル−(α−アセトキシ−
α−ジエチル)酢酸アミド、N,N−ジエチル−
(α−アセトキシ−α−ジエチル)酢酸アミド、
N−モノフエニル−(α−アセトキシ−α−メチ
ル)酢酸アミド、N−モノフエニル−(α−アセ
トキシ−α−ジメチル)酢酸アミド、N−モノフ
エニル−(α−アセトキシ−α−エチル)酢酸ア
ミド、N−モノフエニル−(α−アセトキシ−α
−ジエチル)酢酸アミド、N,N−メチルフエニ
ル−(α−アセトキシ−α−ジメチル)酢酸アミ
ド、N,N−メチルフエニル−(α−アセトキシ
−α−ジエチル)酢酸アミド、N,N−エチルフ
エニル−(α−アセトキシ−α−ジメチル)酢酸
アミド、N,N−エチルフエニル−(α−アセト
キシ−α−ジエチル)酢酸アミド、N,N−ジフ
エニル−(α−アセトキシ−α−ジメチル)酢酸
アミド、N,N−ジフエニル−(α−アセトキシ
−α−ジエチル)酢酸アミド等の他、これらの誘
導体中のα位のアセトキシ基がプロポキシ基又は
ブトキシ基等になつたアシロキシ酢酸誘導体が挙
げられる。
かくして得られるアシロキシ酢酸類は各種農
薬、医薬等の中間体として有用である。
該アシロキシ酢酸類は更に加水分解等によりグ
リコール酢酸としても有用である。かかるグリコ
ール酢酸類とは
で示されるものである。但し、R1〜R3はアシロ
キシ酢酸類のR1〜R3の各々に対応する。加水分
解には特別な操作は必要でなく公知の方法に従つ
て行う。即ち得られたアシロキシ酢酸類を水中に
あるいはエタノール、メタノール等のアルコール
中に溶解あるいは分散させ、触媒の共存下系を環
流させる。かかる状態で温度を通常100℃以下に
保持しながら反応を行い、アシロキシ基を水酸基
に変換させるのである。触媒としては、水酸化ナ
トリウム、水酸化カリウム等のアルカリ触媒、又
塩酸、硫酸、イオン交換樹脂等の酸触媒が適宜用
いられる。
加水分解反応は数分〜10時間程度で終了するの
で以下必要に応じて過、抽出、脱水などの後処
理を行つた後、減圧下に溶媒を留去すると本発明
の目的とするところのグリコール酸類が得られ
る。更に必要ならば再結晶などの公知の方法によ
り、精製することもできる。
尚、化学式()と()を反応させる際に前
記特定有機溶媒と共に水を存在させると直接グリ
コール酸が得られるので特に前記した二段反応は
必ずしも必要とはしない。
かかるグリコール酸類の代表的なものを例示す
ると、グリコール酸メチル、グリコール酸エチ
ル、グリコール酸プロピル、N−モノメチル−グ
リコール酸アミド、N−モノエチル−グリコール
酸アミド、N,N−ジメチル−グリコール酸アミ
ド、N,N−ジエチル−グリコール酸アミド、
N,N−メチルエチル−グリコール酸アミド、N
−モノフエニル−グリコール酸アミド、N,N−
メチルフエニル−グリコール酸アミド、N,N−
エチルフエニル−グリコール酸アミド、N,N−
ジフエニル−グリコール酸アミド、N−モノメチ
ル−α−メチルグリコール酸アミド、N−モノメ
チル−α−ジメチルグリコール酸アミド、N−モ
ノエチル−α−メチルグリコール酸アミド、N−
モノエチル−α−ジメチルグリコール酸アミド、
N,N−ジメチル−α−ジメチルグリコール酸ア
ミド、N−モノメチル−α−エチルグリコール酸
アミド、N−モノメチル−α−ジエチルグリコー
ル酸アミド、N−モノエチル−α−エチルグリコ
ール酸アミド、N−モノエチル−α−ジエチルグ
リコール酸アミド、N,N−ジエチル−α−ジエ
チルグリコール酸アミド、N−モノフエニル−α
−メチルグリコール酸アミド、N−モノフエニル
−α−ジメチルグリコール酸アミド、N−モノフ
エニル−α−エチルグリコール酸アミド、N−モ
ノフエニル−α−ジエチルグリコール酸アミド、
N,N−メチルフエニル−α−ジメチルグリコー
ル酸アミド、N,N−メチルフエニル−α−ジエ
チル−グリコール酸アミド、N,N−エチルフエ
ニル−α−ジメチルグリコール酸アミド、N,N
−エチルフエニル−α−ジエチルグリコール酸ア
ミド、N,N−ジフエニル−α−ジメチルグリコ
ール酸アミド、N,N−ジフエニル−α−ジエチ
ルグリコール酸アミド等が挙げられる。
以下実施例によつて本発明を更に具体的に説明
する。
実施例 1
(α−ブロム−α−メチル)酢酸−n−ヘキシ
ルエステル1.125g(0.005モル)と酢酸ナトリウ
ム0.82g(0.01モル)を15mlのN,N−ジメチル
ホルムアミドに加え、100℃で3時間撹拌した。
冷却後ベンゼン100ml、水100mlを加えて有機層と
水層を分液し、更に抽出水洗を行つた後、ベンゼ
ン層を硫酸ナトリウムで脱水した。減圧下、ベン
ゼン層を留去して1.01gの液体を得た。
該化合物をNMRで分析した結果下記の如き特
性値が得られ、(α−アセトキシ−α−メチル)
酢酸−n−ヘキシルエステルであることが確認さ
れた。
(α−ブロム−α−メチル)酢酸−n−ヘキシ
ルエステルに対する収率は99モル%であつた。
NMR特性値(δppm、CCl4中)
(a):0.6〜1.9(14H)
(b):2.1(s:3H)
(c):4.1(t:2H)
(d):4.9(q:1H)
実施例 2
N,N−メチルフエニル−α−クロル酢酸アミ
ド3.673g(0.02モル)、酢酸ナトリウム1.804g
(0.022モル)を20mlのN,N−ジメチルホルムア
ミドに加え、73℃で3時間反応させた。以下実施
例1と同様にして処理し、白色(無色)結晶4.10
gを得た。この結晶の融点は54〜56℃で又NMR
による分析で下記の如き特性値が得られ、N,N
−メチルフエニル−アセトキシ酢酸アミドである
ことが確認された。該化合物のN,N−メチルフ
エニル−α−クロル酢酸アミドに対する収率は、
99.0モル%であつた。
NMR特性値(δppm、CCl4中)
(a):2.0(S:3H)
(b):3.25(S:3H)
(c):4.3(S:2H)
(d):7.4(S:5H)
実施例 3、4
実施例2において溶媒及び反応条件を以下の如
く変更した以外は同例と同様にして目的物を得
た。
【表】DETAILED DESCRIPTION OF THE INVENTION The present invention is capable of producing a compound represented by the following general formula () by reacting an α-halogenoacetic acid represented by the following general formula () with a carboxylic acid salt represented by the general formula () in the presence of a catalyst. The present invention relates to a method for producing the shown acyloxyacetic acid in good yield. [However, in the above formula, X is chlorine or bromine, R 1 ,
R 2 is hydrogen or alkyl group, R 3 is OR′, NR″R
(R' is an alkyl group, R'', R is hydrogen, an alkyl group, or an aryl group).] [However, in the above formula, R is hydrogen or an alkyl group,
M represents an alkali metal or an alkaline earth metal. ] [However, in the above formula, R 1 to R 3 and R are the formula (),
Indicates the same group as (). ] Acyloxyacetic acids are useful as intermediates for agricultural chemicals, especially herbicides. However, as a method for producing this compound, a method in which the above-mentioned α-halogenoacetic acids and a carboxylic acid salt are reacted is conventionally known. However, in this method, in order to prevent polymerization of the raw material α-halogenoacetic acid,
The fact that twice the molar amount of carboxylic acid salt is essential, and even if such preventive measures are taken, the yield of the target product remains low.
The problem is that it is only about 70-80%. When producing acyloxyacetic acids industrially,
The yield as described above is not necessarily satisfactory, and of course requires an operation to recover unreacted carboxylic acid salts, which poses many problems. However, the present inventor discovered that the desired product could be obtained efficiently by using a quaternary ammonium salt or phosphonium salt as a catalyst as a solution to this problem.
190952)). However, as a result of further research by the present inventors, the inventor discovered the surprising fact that when a specific solvent, namely dimethyl sulfoxide, is used during the reaction, the reaction proceeds extremely efficiently even without the use of the catalyst. This discovery led to the completion of the present invention. The α-halogenoacetic acids referred to in the present invention are represented by the following general formula. However, in this formula, X is chlorine or bromine, R 1 and R 2 are hydrogen or an alkyl group, and R 3 is OR' or NR″R
(R' is an alkyl group, R'', R is hydrogen, an alkyl group, or an aryl group). R 1 to R 3 and R' to R
The number of carbon atoms in the alkyl group is generally between 1 and 7, but the present invention is not limited thereto. Further, the aryl group may be a substituted aryl group substituted with chlorine, bromine, or the like. Specifically, compounds having such a structure include α-chloro (or bromo) methyl acetate, α-chloro (or bromo) ethyl acetate, α-chloro (or bromo) ethyl acetate, and α-chloro (or bromo) ethyl acetate.
Alkyl esters of α-halogenoacetic acid such as propyl acetate, those further substituted at the α position with a methyl group, ethyl group, etc., N-monomethyl-α-chloro(or bromo)acetic acid amide, N-monoethyl-α
-chloro(or bromo)acetamide, N,N-dimethyl-α-chloro(or bromo)acetamide,
N,N-diethyl-α-chloro(or bromo)acetamide, N,N-methylethyl-α-chloro(or bromo)acetamide, N-monophenyl-
α-chloro(or bromo)acetamide, N,N-
Methylphenyl-α-chloro(or bromo)acetamide, N,N-ethylphenyl-α-chloro(or bromo)acetamide, N,N-diphenyl-α-chloro(or bromo)acetamide, N-monomethyl-(α -chloro(or bromo)-α-methyl)acetamide, N-monomethyl-(α-chloro(or bromo)-α-dimethyl)acetamide, N-
Monoethyl-(α-chloro(or bromo)-α-methyl)acetamide, N-monoethyl-(α-chloro(or bromo)-α-dimethyl)acetamide,
N,N-dimethyl-(α-chloro(or bromo)-
α-dimethyl)acetamide, N-monomethyl-
(α-chloro(or bromo)-α-diethyl)acetamide, N-monoethyl-(α-chloro(or bromo)-α-diethyl)acetamide, N,N-diethyl-(α-chloro(or bromo) -α-diethyl)acetamide, N-monophenyl-(α-chloro(or bromo)-α-methyl)acetamide, N
-monophenyl-(α-chlor(or bromo)-α
-dimethyl)acetamide, N-monophenyl-
(α-chloro(or bromo)-α-ethyl)acetamide, N-monophenyl-(α-chloro(or bromo)-α-diethyl)acetamide, N,N-methylphenyl-(α-chloro(or bromo)) −α−
dimethyl)acetamide, N,N-methylphenyl-(α-chloro(or bromo)-α-diethyl)acetamide, N,N-ethylphenyl-(α-chloro(or bromo)-α-dimethyl)acetamide,
N,N-ethylphenyl-(α-chloro(or bromo)-α-diethyl)acetamide, N,N-diphenyl-(α-chloro(or bromo)-α-dimethyl)acetamide, N,N-diphenyl- (α−
Examples include α-halogenoacetic acid derivatives such as chloro(or bromo)-α-diethyl)acetamide. The carboxylic acid salt to be reacted with the above α-halogenoacetic acid is represented by the following general formula. RCOOM However, in this formula, R represents hydrogen or an alkyl group, and M represents an alkaline earth metal. The alkyl group in R usually has 1 to 5 carbon atoms. As the alkali metals and alkaline earth metals, sodium, potassium, calcium, magnesium, etc. are generally used, and alkali metals are particularly preferably used. Specifically, compounds with such a structure include formic acid, acetic acid, propionic acid, butyric acid, valeric acid,
Examples include alkali metal salts or alkaline earth metal salts such as caproic acid, but sodium acetate is the most practical. Such a carboxylic acid salt is usually used in a ratio of 1 to 2 moles based on the α-halogenoacetic acid. The most important feature of the present invention is that the reaction between α-halogenoacetic acids and carboxylic acid salts is carried out in a specific solvent. Such solvents include dimethyl sulfoxide,
Examples include N,N-dimethylformamide and mixed solvents thereof. In addition, other conventionally known organic solvents, such as aromatic hydrocarbon organic solvents such as benzene, toluene, and xylene, and halogenated hydrocarbons such as dichloromethane, dichloroethane, and chloroform, up to the same amount as the specific organic solvent. In addition to the organic solvents, a mixed solvent of the above-mentioned various organic solvents and water can also be used if necessary. By using such a specific organic solvent, as described above, the amount of the carboxylic acid can be reduced without using a catalyst, and the generation of by-products due to polymerization of α-halogenoacetic acids can be suppressed. As a result, the desired acyloxyacetic acids can be obtained efficiently and in high yield. Of course, if necessary, a catalyst such as a quaternary ammonium salt or a phosphonium salt may be used without any problem. When carrying out the method of the present invention, there is no particular problem as long as the reaction temperature is below the boiling point of the above-mentioned compound (α-halogenoacetic acid, carboxylate), and is usually 0 to 200°C,
More preferably, good results are obtained when the temperature is 20 to 120°C. The reaction time is not limited as it varies depending on the type of compound, solvent, etc. used, but it is usually completed in 0.5 to 24 hours. The reaction solution is subjected to treatments such as filtration, washing, and dehydration as necessary, and then the solvent is distilled off under reduced pressure to obtain the acyloxyacetic acid represented by the following general formula, which is the object of the present invention. I can do it. However, in this formula, R 1 to R 3 and R correspond to the above-mentioned α-halogenoacetic acids and carboxylic acid salts. Compounds represented by such structural formulas include methyl acetoxyacetate, ethyl acetoxyacetate, propyl acetoxyacetate, methyl propoxyacetate,
Ethyl propoxy acetate, propyl propoxy acetate, methyl butoxy acetate, ethyl butoxy acetate,
Alkyl esters of acyloxyacetic acid such as propyl butoxyacetate, further N-monomethyl-acetoxyacetamide, N-monoethyl-acetoxyacetamide, N,N-dimethyl-acetoxyacetamide, N,N-diethyl-acetoxyacetamide,
N,N-methylethyl-acetoxyacetamide,
N-monophenyl-acetoxyacetic acid amide, N,
N-methylphenyl-acetoxyacetic acid amide,
N,N-ethylphenyl-acetoxyacetamide, N,N-diphenyl-acetoxyacetamide, N-monomethyl-(α-acetoxy-α-methyl)acetamide, N-monomethyl-(α-acetoxy-α-dimethyl)acetic acid Amide, N-monoethyl-(α-acetoxy-α-methyl)acetamide, N-monoethyl-(α-acetoxy-α-dimethyl)acetamide, N,N-dimethyl-(α-
Acetoxy-α-dimethyl)acetamide, N-monomethyl-(α-acetoxy-α-diethyl)acetamide, N-monoethyl-(α-acetoxy-
α-diethyl)acetamide, N,N-diethyl-
(α-acetoxy-α-diethyl)acetamide,
N-monophenyl-(α-acetoxy-α-methyl)acetamide, N-monophenyl-(α-acetoxy-α-dimethyl)acetamide, N-monophenyl-(α-acetoxy-α-ethyl)acetamide, N- Monophenyl-(α-acetoxy-α
-diethyl)acetamide, N,N-methylphenyl-(α-acetoxy-α-dimethyl)acetamide, N,N-methylphenyl-(α-acetoxy-α-diethyl)acetamide, N,N-ethylphenyl-(α -acetoxy-α-dimethyl)acetamide, N,N-ethylphenyl-(α-acetoxy-α-diethyl)acetamide, N,N-diphenyl-(α-acetoxy-α-dimethyl)acetamide, N,N- Examples include diphenyl-(α-acetoxy-α-diethyl)acetic acid amide and the like, as well as acyloxyacetic acid derivatives in which the acetoxy group at the α-position in these derivatives has become a propoxy group, a butoxy group, or the like. The acyloxyacetic acids thus obtained are useful as intermediates for various agricultural chemicals, pharmaceuticals, and the like. The acyloxyacetic acids are also useful as glycolic acetic acids by hydrolysis and the like. What are such glycolic acetic acids? This is shown in . However, R 1 to R 3 correspond to each of R 1 to R 3 of acyloxyacetic acids. Hydrolysis does not require any special operation and is carried out according to known methods. That is, the obtained acyloxyacetic acids are dissolved or dispersed in water or an alcohol such as ethanol or methanol, and the system is refluxed in the presence of a catalyst. Under these conditions, the reaction is carried out while maintaining the temperature usually below 100°C to convert the acyloxy group to a hydroxyl group. As the catalyst, alkali catalysts such as sodium hydroxide and potassium hydroxide, and acid catalysts such as hydrochloric acid, sulfuric acid, and ion exchange resins are used as appropriate. The hydrolysis reaction is completed in a few minutes to about 10 hours, so after performing post-treatments such as filtration, extraction, and dehydration as necessary, the solvent is distilled off under reduced pressure to produce the glycol that is the object of the present invention. Acids are obtained. Further, if necessary, it can be purified by known methods such as recrystallization. Incidentally, when the chemical formulas () and () are reacted, if water is present together with the specific organic solvent, glycolic acid can be obtained directly, so the two-step reaction described above is not necessarily necessary. Representative examples of such glycolic acids include methyl glycolate, ethyl glycolate, propyl glycolate, N-monomethyl-glycolic acid amide, N-monoethyl-glycolic acid amide, N,N-dimethyl-glycolic acid amide, N,N-diethyl-glycolic acid amide,
N,N-methylethyl-glycolic acid amide, N
-monophenyl-glycolic acid amide, N,N-
Methylphenyl-glycolic acid amide, N,N-
Ethyl phenyl-glycolic acid amide, N,N-
Diphenyl-glycolic acid amide, N-monomethyl-α-methylglycolic acid amide, N-monomethyl-α-dimethylglycolic acid amide, N-monoethyl-α-methylglycolic acid amide, N-
monoethyl-α-dimethylglycolic acid amide,
N,N-dimethyl-α-dimethylglycolic acid amide, N-monomethyl-α-ethylglycolic acid amide, N-monomethyl-α-diethylglycolic acid amide, N-monoethyl-α-ethylglycolic acid amide, N-monoethyl- α-diethylglycolic acid amide, N,N-diethyl-α-diethylglycolic acid amide, N-monophenyl-α
-Methylglycolic acid amide, N-monophenyl-α-dimethylglycolic acid amide, N-monophenyl-α-ethylglycolic acid amide, N-monophenyl-α-diethylglycolic acid amide,
N,N-methylphenyl-α-dimethylglycolic acid amide, N,N-methylphenyl-α-diethyl-glycolic acid amide, N,N-ethylphenyl-α-dimethylglycolic acid amide, N,N-methylphenyl-α-dimethylglycolic acid amide
-Ethyl phenyl-α-diethylglycolic acid amide, N,N-diphenyl-α-dimethylglycolic acid amide, N,N-diphenyl-α-diethylglycolic acid amide, and the like. The present invention will be explained in more detail below using Examples. Example 1 1.125 g (0.005 mol) of (α-bromo-α-methyl)acetic acid-n-hexyl ester and 0.82 g (0.01 mol) of sodium acetate were added to 15 ml of N,N-dimethylformamide and heated at 100°C for 3 hours. Stirred.
After cooling, 100 ml of benzene and 100 ml of water were added to separate the organic layer and the aqueous layer. After extraction and washing with water, the benzene layer was dehydrated with sodium sulfate. The benzene layer was distilled off under reduced pressure to obtain 1.01 g of liquid. As a result of NMR analysis of this compound, the following characteristic values were obtained, (α-acetoxy-α-methyl)
It was confirmed that it was acetic acid-n-hexyl ester. The yield based on (α-bromo-α-methyl)acetic acid-n-hexyl ester was 99 mol%. NMR characteristic value (δppm, in CCl 4 ) (a): 0.6-1.9 (14H) (b): 2.1 (s: 3H) (c): 4.1 (t: 2H) (d): 4.9 (q: 1H) Example 2 N,N-methylphenyl-α - Chloroacetamide 3.673g (0.02mol), sodium acetate 1.804g
(0.022 mol) was added to 20 ml of N,N-dimethylformamide and reacted at 73°C for 3 hours. The following treatment was carried out in the same manner as in Example 1, and white (colorless) crystals were obtained at 4.10%.
I got g. The melting point of this crystal is 54-56℃, and NMR
The following characteristic values were obtained by analysis, and N, N
-Methylphenyl-acetoxyacetic acid amide was confirmed. The yield of this compound based on N,N-methylphenyl-α-chloroacetamide is:
It was 99.0 mol%. NMR characteristic value (δppm, in CCl 4 ) (a): 2.0 (S: 3H) (b): 3.25 (S: 3H) (c): 4.3 (S: 2H) (d): 7.4 (S: 5H) Examples 3 and 4 Solvent in Example 2 The desired product was obtained in the same manner as in the same example except that the reaction conditions were changed as follows. 【table】
Claims (1)
酸類と下記一般式()で示されるカルボン酸塩
を反応させて下記一般式()で示されるアシロ
キシ酢酸類を製造するに当たり、溶媒としてジメ
チルスルホキシド、N,N−ジメチルホルムアミ
ドから選ばれる少なくとも一種を使用することを
特徴とするアシロキシ酢酸類の製造方法。 〔但し、上記式中、Xは塩素又は臭素、R1、
R2は水素又はアルキル基、R3はOR′、又はNR″R
(R′はアルキル基、R″、Rは水素又はアル
キル基又はアリール基)を示す。〕 〔但し、上記式中、Rは水素又はアルキル基、
Mはアルカリ金属又はアルカリ土類金属を示す。〕 〔但し、上記式中、R1、R2、R3、Rは式
()、()と同じ基を示す。〕[Scope of Claims] 1. An α-halogenoacetic acid represented by the following general formula () is reacted with a carboxylic acid salt represented by the following general formula () to produce an acyloxyacetic acid represented by the following general formula (). A method for producing acyloxyacetic acids, characterized in that at least one selected from dimethyl sulfoxide and N,N-dimethylformamide is used as a solvent. [However, in the above formula, X is chlorine or bromine, R 1 ,
R 2 is hydrogen or alkyl group, R 3 is OR′ or NR″R
(R' is an alkyl group, R'', R is hydrogen, an alkyl group, or an aryl group).] [However, in the above formula, R is hydrogen or an alkyl group,
M represents an alkali metal or an alkaline earth metal. ] [However, in the above formula, R 1 , R 2 , R 3 , and R represent the same groups as in formulas () and (). ]
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13321083A JPS6025954A (en) | 1983-07-20 | 1983-07-20 | Production of acyloxyacetic acid compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13321083A JPS6025954A (en) | 1983-07-20 | 1983-07-20 | Production of acyloxyacetic acid compound |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30406491A Division JPH0662507B2 (en) | 1991-10-22 | 1991-10-22 | Method for producing glycol acetic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6025954A JPS6025954A (en) | 1985-02-08 |
JPH0425261B2 true JPH0425261B2 (en) | 1992-04-30 |
Family
ID=15099300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13321083A Granted JPS6025954A (en) | 1983-07-20 | 1983-07-20 | Production of acyloxyacetic acid compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6025954A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106883137A (en) * | 2017-02-14 | 2017-06-23 | 江苏快达农化股份有限公司 | The method that one kettle way prepares N methyl N phenyl-acetamides acetic acid esters |
-
1983
- 1983-07-20 JP JP13321083A patent/JPS6025954A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106883137A (en) * | 2017-02-14 | 2017-06-23 | 江苏快达农化股份有限公司 | The method that one kettle way prepares N methyl N phenyl-acetamides acetic acid esters |
Also Published As
Publication number | Publication date |
---|---|
JPS6025954A (en) | 1985-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4467112A (en) | Process for producing p-n-alkylbenzoic acid | |
JPH0251908B2 (en) | ||
WO2012046857A1 (en) | 3,4-dialkylbiphenyldicarboxylic acid compound, 3,4-dicarboalkoxybiphenyl-3',4'-dicarboxylic acid and corresponding acid anhydrides, and processes for producing these compounds | |
JPH0425261B2 (en) | ||
WO2006128952A1 (en) | Process for the preparation of adamantane derivatives | |
US20060270870A1 (en) | Process for the preparation of adamantane derivatives | |
JP5128787B2 (en) | Process for producing high purity halogen-free o-phthalaldehyde | |
JP3907787B2 (en) | Method for producing benzoic acid derivative | |
KR101856566B1 (en) | New preparation method of 4'-Hydroxy-4-biphenylcarboxylic acid | |
JPS59190953A (en) | Production of glycolic acid | |
JP3814839B2 (en) | Method for producing aromatic dialdehyde | |
US4339594A (en) | Process for the manufacture of phenylacetic acid and simple derivatives thereof | |
JP3563424B2 (en) | Method for producing 4H-pyran-4-one | |
JP3792030B2 (en) | Method for producing 4-biphenylylacetic acid | |
JPH05320096A (en) | Production of glycollic acids | |
JPH10204020A (en) | Production of chloro-benzoyl chloride compounds | |
JP4266111B2 (en) | Process for producing polycarboxyadamantane derivatives | |
JPH04243851A (en) | Production of 4'-hydroxybiphenyl-4-carboxylic acid | |
JP2001247509A (en) | Method of producing 2, 3, 5, 6-tetrachloro-1, 4- benzenedicarboxylic acid | |
JPH06107599A (en) | Production of aromatic dicarboxlic acid monoester compounds | |
JP2003137835A (en) | Method for producing (r)-3-hydroxy-3-(2-phenyl)hexanoic acid | |
JP2003171327A (en) | Method for producing optically active 1,1'-bi-2-naphthols | |
JP2001048826A (en) | Production of 1-phenyl-1,3-butanedione | |
JPH1149722A (en) | Production of biphenyl derivative | |
JPH08169868A (en) | Production of 4-cyano-4'-hydroxybiphenyl |