BE628772A - - Google Patents
Info
- Publication number
- BE628772A BE628772A BE628772DA BE628772A BE 628772 A BE628772 A BE 628772A BE 628772D A BE628772D A BE 628772DA BE 628772 A BE628772 A BE 628772A
- Authority
- BE
- Belgium
- Prior art keywords
- weight
- parts
- acid
- chloride
- esters
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 150000001805 chlorine compounds Chemical class 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- LWTXRSWGLSFPSU-UHFFFAOYSA-N 2-(trichloromethyl)benzoic acid Chemical compound OC(=O)C1=CC=CC=C1C(Cl)(Cl)Cl LWTXRSWGLSFPSU-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N Phthalic acid Chemical class OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims 1
- 230000000875 corresponding Effects 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K Aluminium chloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 4
- 150000004702 methyl esters Chemical class 0.000 description 4
- VGCXGMAHQTYDJK-UHFFFAOYSA-N Chloroacetyl chloride Chemical compound ClCC(Cl)=O VGCXGMAHQTYDJK-UHFFFAOYSA-N 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- LKYGFDGSOYBOLS-UHFFFAOYSA-L 4-methoxycarbonylbenzoate;chloride Chemical compound [Cl-].COC(=O)C1=CC=C(C([O-])=O)C=C1 LKYGFDGSOYBOLS-UHFFFAOYSA-L 0.000 description 2
- KUGFODPTKMDJNG-UHFFFAOYSA-I Antimony pentachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[SbH3+3] KUGFODPTKMDJNG-UHFFFAOYSA-I 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 2
- FOCAUTSVDIKZOP-UHFFFAOYSA-N Chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- 125000004432 carbon atoms Chemical group C* 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- OZIRCCJRPLZFCQ-UHFFFAOYSA-N COC(C1=CC(=CC=C1)C(Cl)(Cl)Cl)=O Chemical compound COC(C1=CC(=CC=C1)C(Cl)(Cl)Cl)=O OZIRCCJRPLZFCQ-UHFFFAOYSA-N 0.000 description 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N Isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- -1 aliphatic alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- WPFVBOQKRVRMJB-UHFFFAOYSA-N hydroxycitronellal Chemical compound O=CCC(C)CCCC(C)(C)O WPFVBOQKRVRMJB-UHFFFAOYSA-N 0.000 description 1
- CPXCDEMFNPKOEF-UHFFFAOYSA-N methyl 3-methylbenzoate Chemical compound COC(=O)C1=CC=CC(C)=C1 CPXCDEMFNPKOEF-UHFFFAOYSA-N 0.000 description 1
- PWFPDRYHJFGZDV-UHFFFAOYSA-N methyl 4-(trichloromethyl)benzoate Chemical compound COC(=O)C1=CC=C(C(Cl)(Cl)Cl)C=C1 PWFPDRYHJFGZDV-UHFFFAOYSA-N 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N propylene glycol Chemical class CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/58—Preparation of carboxylic acid halides
- C07C51/60—Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<Desc/Clms Page number 1>
Dans le brevet principal, on a revendiqué un procède
EMI1.1
de préparation de chlorures de semi-esters d'acides benzène" diearboxyliques éventuellement halogènes dans lequel on fait réagir des esters d'acide trtchlorométhyl benzoïque d'alcools
EMI1.2
aliphatiques saturés primaires comportant jusqu'à 5 atomes de carbone à température élevée avec de l'acide mono-, di- ou
EMI1.3
trichloroacétique en présence de vs 1% en poids de chlorure de fer III.
On utilise de préférence, les calera méthyliques dois
EMI1.4
acides trlchlorométhyl boncotquen et la réaction est effectuée A des températures comprises entre 50 et 16000# en particulier entre 100 et 13000.
On a constaté à présent que l'on peut préparer, avec de bons rendements, les chlorures de semi-esters d'acide. benzène* hqlogÓn8 ç dicarboxyliquea éventuellement, en particulier de l'acide iso- phtalique et de l'acide téréphtalique<suivant le brevet belge 6 14, 9 11, lorsqu'on effectue la réaction des cotera d'acide tri- chlorométhyl benzoïque d'alcools aliphatiques primaires saturés
EMI1.5
comportant jusqu'à 5 atomes de carbone, en présence de 0,01 à 1 % en poids de composés polyhalogénés inorganiques non saturés, comme catalyseur, au lieu d'utiliser du chlorure de fer III.
Copine esters d'alcools aliphatiques saturée primaires, on peut utiliser, conformément à la présente invention, les
EMI1.6
esters méthyliques, éthyliques$ propyliqueo, butyliques# et amyliques* On préfère utiliser les esters méthyliques*
Comme catalyseurs, on peut utiliser, le pentachlorure d'antimoine, le chlorure de zinc, le chlorure d'aluminium,
<Desc/Clms Page number 2>
le chlorure de bore et d'autres composés similaires.
Les chlorures de semi-esters préparés selon l'inven- tion constituent dea produits intermédiaires de 'valeur pour la préparation de matières plastiques synthétiques par polyconden-
EMI2.1
nation# EXEMPLES, On mélange 127 parties en poids d'ester méthylique
EMI2.2
d'acide ptriah.aramthy'1 benzoïque avec 47,3 parties en poids d'acide monochloracét1qui en présence de 0,15 parties en poids de pentachlorure d'antimoine* Après addition du catalyseur, il se produit déjà à la température ambiante un dégagement lent d'acide chlorhydrique.
four accélérer la réaction, on chauffe
EMI2.3
jusqu'à 8000# ce qui produit un dégagement violent d'acide chlorhydrique, de sorte que la réaction est déjà terminée après une demi-heure. Lors de la distillation du mélange réactionnel,
EMI2.4
on a obtenu 53 g de chlorure de chloracétyle et 9<: g de chlorure de téréphtalate de méthyle, ce qui correspond fui. un rendement à 93,;. L'ester méthylique de l'acide p-trichloromèthyl bunzo- %que nécessaire est préparé de la manière décrite dans l'exem- ple 1.
EMI2.5
BjXEUPLB 3 On chauffe 1?. parties en poids d'ester méthylique d'acide m-trichlorométhyl benzoïque avec 47,3 parties en poids d'acide monochloracétique en présence de 0,15 parties en poids de chlorure de zinc fraîchement fondu, pendant une heure et
EMI2.6
il quart a 140*0 jusqu'à fin de dégagement d'acide chlorhydrique Lors de la distillation du mélange réactionnel en présence de bzz partie en poids de dtéthylamide d'acide laurinue, on a obtenu 47 parties en poids de chlorure de chloracétyle et 78 parties en poids de chlorure d'iaophtalate de méthyle, ce qui
EMI2.7
correspond à un rondement de 81 bzz:.
L'ester méthylique de l'aci- de artrichlaxom3thyl bonzolque nécessaire est obtenue de la
<Desc/Clms Page number 3>
manière décrite dans l'exemple 1 à partir du m-toluate de méthyle.
EXEMPLE 3
On chauffe 127 parties en poids d'ester méthylique d'acide p-trichlorométhyl benzoïque avec 47,3 parties en poids d'acide monochloracétique en présence de 0,3 partie: en poids de chlorure d'aluminium anhydre, pendant 6 heures à 180 C, jus- qu'à ce que le dégagement d'acide chlorhydrique cesse. Lors de la distillation du mélange réactionnel, on a obtenu 29 parties en poids de chlorure do chloracétyle et 47 parties en poids de chlorure de téréphtalate de méthyle.
<Desc / Clms Page number 1>
In the main patent, a procedure was claimed
EMI1.1
for the preparation of chlorides of semi-esters of benzene "diearboxylic acids, optionally halogenated, in which esters of trchloromethyl benzoic acid of alcohols are reacted
EMI1.2
primary saturated aliphatics of up to 5 carbon atoms at elevated temperature with mono-, di- or acid
EMI1.3
trichloroacetic in the presence of vs 1% by weight of iron III chloride.
Methyl calera should preferably be used.
EMI1.4
trlchloromethyl boncotquen acids and the reaction is carried out at temperatures between 50 and 16000 # in particular between 100 and 13000.
It has now been found that the chlorides of acid semi-esters can be prepared with good yields. benzene * hqlogÓn8 ç dicarboxyliquea optionally, in particular isophthalic acid and terephthalic acid <according to Belgian patent 6 14, 9 11, when carrying out the reaction of trichloromethyl benzoic acid cotera of saturated primary aliphatic alcohols
EMI1.5
comprising up to 5 carbon atoms, in the presence of 0.01 to 1% by weight of unsaturated inorganic polyhalogen compounds, as a catalyst, instead of using iron III chloride.
Primary saturated aliphatic alcohol esters can be used according to the present invention.
EMI1.6
Methyl, ethyl $ propylic, butyl # and amyl esters * We prefer to use methyl esters *
As catalysts, antimony pentachloride, zinc chloride, aluminum chloride,
<Desc / Clms Page number 2>
boron chloride and other similar compounds.
The semi-ester chlorides prepared according to the invention are valuable intermediate products for the preparation of synthetic plastics by polycondensation.
EMI2.1
nation # EXAMPLES, 127 parts by weight of methyl ester are mixed
EMI2.2
of ptriah.aramthy'1 benzoic acid with 47.3 parts by weight of monochloroacet1 acid which in the presence of 0.15 parts by weight of antimony pentachloride * After addition of the catalyst, an evolution already occurs at room temperature slow hydrochloric acid.
oven accelerate the reaction, heat
EMI2.3
up to 8000 # which produces a violent release of hydrochloric acid, so that the reaction is already completed after half an hour. When distilling the reaction mixture,
EMI2.4
53 g of chloroacetyl chloride and 9: g of methyl terephthalate chloride were obtained, which corresponds to leakage. a yield of 93, ;. The p-trichloromethyl bunzo% acid methyl ester as required is prepared as described in Example 1.
EMI2.5
BjXEUPLB 3 We heat 1 ?. parts by weight of m-trichloromethyl benzoic acid methyl ester with 47.3 parts by weight of monochloroacetic acid in the presence of 0.15 parts by weight of freshly melted zinc chloride, for one hour and
EMI2.6
It quarter at 140 * 0 until the end of release of hydrochloric acid.During the distillation of the reaction mixture in the presence of bzz part by weight of laurine acid dtethylamide, 47 parts by weight of chloroacetyl chloride and 78 parts were obtained. parts by weight of methyl iaophthalate chloride, which
EMI2.7
corresponds to a round of 81 bzz :.
The necessary artrichlaxom3thyl bonzolque acid methyl ester is obtained from
<Desc / Clms Page number 3>
manner described in Example 1 from methyl m-toluate.
EXAMPLE 3
127 parts by weight of p-trichloromethyl benzoic acid methyl ester are heated with 47.3 parts by weight of monochloroacetic acid in the presence of 0.3 part by weight of anhydrous aluminum chloride, for 6 hours at 180 C, until the evolution of hydrochloric acid ceases. On distillation of the reaction mixture, 29 parts by weight of chloroacetyl chloride and 47 parts by weight of methyl terephthalate chloride were obtained.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE628772A true BE628772A (en) |
Family
ID=198509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE628772D BE628772A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE628772A (en) |
-
0
- BE BE628772D patent/BE628772A/fr unknown
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5650537A (en) | Process for the preparation of N-acyl-α-amino acid derivatives | |
SU516342A3 (en) | Method for preparing perfluoroalkylalkyl esters of unsaturated carboxylic acids | |
BE628772A (en) | ||
JPH0566375B2 (en) | ||
US3102135A (en) | Production of benzoic acids and 1-(carboxyphenyl)-indane carboxylic acids | |
DE2737210C2 (en) | Process for the production of nitriles | |
WO2018184196A1 (en) | Method for preparing 2-arylmalonamide and applications of method | |
US4952721A (en) | Process for oxidizing esters of methyl-substituted phenol compounds to aromatic carboxylic acids | |
US4002664A (en) | Manufacture of dimethylaminobenzenecarboxylic acid esters | |
US2510423A (en) | Method of producing alkyl esters of alpha-beta unsaturated monocarboxylic acids froma beta-lactone and an alcohol | |
JP2000001457A (en) | Production of acetate ester | |
CN108658762B (en) | Synthesis method of alicyclic o-diester | |
JPS6287550A (en) | Manufacture of z-2-methyl-2-butenoic acid | |
Oates et al. | Cross coupling reactions of organozinc iodides with solid-supported electrophiles: synthesis of 4-substituted benzoic and 3-substituted (E)-and (Z)-propenoic acids and amides | |
US3681446A (en) | Process for the production of para-chloro-benzoic acid | |
US2851489A (en) | Aminohydroxyimino aliphatic carboxylic acids and the preparation thereof | |
JPS5837299B2 (en) | 2- Nitrobenzaldehyde | |
JP2682687B2 (en) | New thiophene compounds and their manufacture | |
US3375258A (en) | Preparation of 2-benzoylmethylbenzoxazoles | |
SU289080A1 (en) | METHOD OF OBTAINING LAURIN ACID | |
CN116283573A (en) | Method for synthesizing 6-hydroxy-8-chlorooctanoic acid ethyl ester | |
JPS5822094B2 (en) | Method for manufacturing ethyl esters | |
JPS6228949B2 (en) | ||
BE512666A (en) | ||
SU318567A1 (en) | METHOD OF OBTAINING BIS- (p-CARBALLYLOXIPHENYL) |