3,4'-Oxydiphthalic Anhydride
Appearance- Product Name
- 3,4'-Oxydiphthalic Anhydride
- CAS No.
- 50662-95-8
- Chemical Name
- 3,4'-Oxydiphthalic Anhydride
- Synonyms
- a-ODPA;α-ODPA;alpha-ODPA;3,4'-Oxydiphthalic Anhydride;3,4'-Oxydiphthalic Anhydride;3,4'-OxydiphthalicAnhydride>97%, 3,4'-Oxydiphthalic Anhydride;4,5'-Oxibis(isobenzofrane-1,3-dione);2,3,3',4'-Diphenylether tetracar boxylic;2,3,3',4'-diphenyl ether tetracarboxylic acid
- CBNumber
- CB42514529
- Molecular Formula
- C16H6O7
- Formula Weight
- 310.21
- MOL File
- 50662-95-8.mol
3,4'-Oxydiphthalic Anhydride Property
- Melting point:
- 180 °C
- Boiling point:
- 554.4±35.0 °C(Predicted)
- Density
- 1.665
- storage temp.
- Inert atmosphere,Store in freezer, under -20°C
- form
- powder to crystal
- color
- White to Orange to Green
- InChI
- InChI=1S/C16H6O7/c17-13-8-5-4-7(6-10(8)15(19)22-13)21-11-3-1-2-9-12(11)16(20)23-14(9)18/h1-6H
- InChIKey
- OPVHOFITDJSMOD-UHFFFAOYSA-N
- SMILES
- C1(=O)C2=C(C(OC3C=CC4C(=O)OC(=O)C=4C=3)=CC=C2)C(=O)O1
Safety
- HS Code
- 29329990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H315Causes skin irritation
H318Causes serious eye damage
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- O0384
- Product name
- 3,4'-Oxydiphthalic Anhydride
- Purity
- >98.0%(GC)(T)
- Packaging
- 1g
- Price
- $22
- Updated
- 2024/03/01
- Product number
- O0384
- Product name
- 3,4'-Oxydiphthalic Anhydride
- Purity
- >98.0%(GC)(T)
- Packaging
- 5g
- Price
- $83
- Updated
- 2021/12/16
- Product number
- O0384
- Product name
- 3,4'-Oxydiphthalic Anhydride
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $244
- Updated
- 2024/03/01
- Product number
- D492770
- Product name
- 4-((1,3-Dioxo-1,3-dihydroisobenzofuran-5-yl)oxy)isobenzofuran-1,3-dione
- Packaging
- 250mg
- Price
- $40
- Updated
- 2021/12/16
- Product number
- 6991AB
- Product name
- 4-((1,3-Dioxo-1,3-dihydroisobenzofuran-5-yl)oxy)isobenzofuran-1,3-dione
- Packaging
- 25g
- Price
- $374
- Updated
- 2021/12/16
3,4'-Oxydiphthalic Anhydride Chemical Properties,Usage,Production
Appearance
White to Orange to Green powder to crystal
Uses
4-[(1,3-Dihydro-1,3-dioxo-5-isobenzofuranyl)oxy]-1,3-isobenzofurandione is a useful research chemical.
Uses
3,4'-Oxydiphthalic Anhydride (α-ODPA) can be used to prepare polyimides. The polymer is widely used in silicon-based anode plates, resin films and filler materials for high-performance lithium-ion batteries.
Synthesis
2,2',3,3'-ODPA and 2,3,3',4'-ODPA are synthesised using 3-Chlorophthalic anhydride as a raw material by chemical reaction[1]. The specific synthesis steps are as follows:
Step1: 3-Chlorophthalic anhydride (348.83 g) was taken
in a 2000-mL, three-necked, round-bottom flask
fitted with a mechanical stirrer and a reflux condenser. About 1100 mL of glacial acetic acid were
added. It was stirred for 20 min at 50 °C to dissolve the anhydride completely. Then, 198 g of
aqueous methylamine solution (ca. 59.35 g of
methylamine) were dropped in the flask. The resulting mixture was heated to reflux for 4 h and
subsequently cooled to room temperature. The
white crystals were filtered and dried; 314 g were
obtained (yield: 84%, mp: 101–103 °C).
Step2: 3-(2,3-Dimethylphenoxy) phthalic acid (32.90 g)
and potassium hydroxide (10.4 g) were dissolved
in 1000 mL of water, and the solution was heated
to about 80 °C. Then, solid potassium permanganate (116.6 g) was added gradually several times
until the purple did not fade within 30 min. After
reflux for 5 h, the excess potassium permanganate was destroyed with ethanol. The filtrate was
acidified to a pH of 1 after concentration to 200
mL and cooled to room temperature. The acid
solution was allowed to stand overnight, and the
white precipitation was collected by filtration and
dried and then purified by sublimation at 267 °C
in vacuo. About 31.35 g of dianhydride (yield:
88%) were obtained; mp: 243–244 °C (lit.16 236 –
238 °C, lit.18 237 °C).
IR (KBr): 1860, 1786 (CAO str), 1261 (asym
COO str), 1048 cm1 (sym COO str). 1
H NMR
(300 M, DMSO): (ppm), 8.03– 8.01 (d, 2H), 7.98 –
7.92 (t, 2H), 7.60 –7.57 (d, 2H). ELEM. ANAL. Calcd.
for C16H6O7: C, 61.95%; H, 1.95%. Found: C,
61.87%; H, 1.93%.
Step3: The reactions were the as same as the synthesis
of 2,2,3,3-ODPA except for the replacement of
2,3-xylenol as 3,4-xylenol. The final dianhydride
was recrystallized from the mixed solvents of acetic anhydride and toluene; mp: 177–178 °C (lit.16
174 –175.5 °C, lit.18 170 °C).
IR (KBr): 1854, 1770 (CAO str), 1265 (asym
COO str), 1081 (sym COO str) cm1
. 1
H NMR
(300 MHz, DMSO-d6): (ppm) 8.17– 8.14 (d, 1H),
8.10 – 8.08 (d, 1H), 8.05– 8.00 (t, 1H), 7.75–7.74 (d,
1H), 7.71 (s, 1H), 7.70 –7.68 (d, 1H). ELEM. ANAL.
Calcd. for C16H6O7: C, 61.95%; H, 1.95%. Found:
C, 61.90%; H, 1.97%.
References
[1] QINGXUAN LI. Polyimides from isomeric oxydiphthalic anhydrides[J]. Journal of Polymer Science Part A: Polymer Chemistry, 2003. DOI:10.1002/pola.10918.
3,4'-Oxydiphthalic Anhydride Preparation Products And Raw materials
Raw materials
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View Lastest Price from 3,4'-Oxydiphthalic Anhydride manufacturers
- Product
- 2,3,3',4'-Diphenyl ether tetracarboxylic acid dianhydride 50662-95-8
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99.00%
- Supply Ability
- 1500KG/month
- Release date
- 2021-11-01
- Product
- 2,3,3’,4’-Tetracarboxydiphenyl oxide dianhydride (α-ODPA) 50662-95-8
- Price
- US $0.00/Kg/Bag
- Min. Order
- 1KG
- Purity
- ≥99%
- Supply Ability
- 100KG
- Release date
- 2021-12-16
- Product
- 3,4'-Oxydiphthalic Anhydride 50662-95-8
- Price
- US $111.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-01-08