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Cyclobutane-1,2,3,4-tetracarboxylic dianhydride

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Cyclobutane-1,2,3,4-tetracarboxylic dianhydride Basic information

Product Name:
Cyclobutane-1,2,3,4-tetracarboxylic dianhydride
Synonyms:
  • 3a,3b,6a,6b-Tetrahydrocyclobuta[1,2-c:3,4-c']difuran-1,3,4,6-tetrone
  • 4,9-Dioxatricyclo[5.3.0.02,6]decane-3,5,8,10-tetrone
  • Cyclobutane 1,2,3,4-tetracarboxylic acid 1,2:3,4-dianhydride
  • Cyclobutane-1,2,3,4-tetracarboxylic dianhydride ,98%
  • Cyclobutane-1,2,3,4-tetracarboxylic acid dianhydride
  • Cyclobutane-1,2,3,4-tetracarboxylic acid dianhydride (CBDA)
  • Cyclobutane-1,2,3,4-tetracarboxylic
  • 1,2,3,4-Cyclobutanetetracarboxylic Dianhydride (purified by sublimation)
CAS:
4415-87-6
MF:
C8H4O6
MW:
196.11
EINECS:
224-577-5
Product Categories:
  • Fluorenes, etc. (reagent for high-performance polymer research)
  • Functional Materials
  • Reagent for High-Performance Polymer Research
  • Carbonyl Compounds
  • Carboxylic Acid Anhydrides
  • Organic Building Blocks
  • fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis, Organic Building Blocks
  • fine chemicals, specialty chemicals, intermediates, electronic chemical, organic synthesis, pharmaceutical intermediates
  • monomer
Mol File:
4415-87-6.mol
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Cyclobutane-1,2,3,4-tetracarboxylic dianhydride Chemical Properties

Melting point:
>300 °C (lit.)
Boiling point:
545.3±50.0 °C(Predicted)
Density 
1.823±0.06 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
solubility 
soluble in Toluene
form 
powder to crystal
color 
White to Light yellow
BRN 
1430553
CAS DataBase Reference
4415-87-6(CAS DataBase Reference)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
RIDADR 
1759
WGK Germany 
3
9-21
HazardClass 
8
PackingGroup 
III
HS Code 
29172090

MSDS

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Cyclobutane-1,2,3,4-tetracarboxylic dianhydride Usage And Synthesis

Chemical Properties

White to light yellow solid

Uses

cyclobutane-1,2,3,4-tetracarboxylic dianhydride and diamine monomer are used for preparation a polyimide (PI), the type of polyimide has excellent electrical characteristics and optical type, with the material prepared the PI film, in addition to having a higher rate cast visible outside, and can withstand high temperatures thirty-four Baidu. Its performance is very good, is the preparation of a liquid crystal display with an ideal material for the film.

Uses

Reactant for:

  • Preparation of biologically and pharmacologically active molecules
  • Preparation of photosensitive polyimide material for high performance organic thin-film transistors
  • Selective crosslinking of polyimide for photonic devices

Preparation

Preparation of 1,2,3,4- cyclobutanetetracarboxylic acid dianhydride (CBDA)To a 2L quartz glass photoreactor equipped with sixteen UV lamps (300nm) , a stirrer and a cooler were attached and 250ml of ethyl acetate and 100g of maleic anhydride were added thereto followed by stirring for complete mixing. To avoid an excessive temperature increase, an air-cooling type cooler was first run and then UV light was illuminated for a photoreaction for 24h with stirring so as not to have the reactants adhered to the reactor walls. As a result, 71g of white solid was obtained. After the filtration, the white solid was dried for 24h in a vacuum dryer at 60°C Thus-obtained solid was then added to acetic anhydride, dissolved therein and slowly heated to 150°C followed by the reaction for 24h . Hot reaction solution was filtered through a filter paper to remove impurities and kept in a freezer at the temperature of 0°C or less for recrystallization for 24h to obtain a yellow solid. Thus-obtained solid was filtered and washed three times with 1,4-dioxane to remove acetic anhydride, and then dried in a vacuum oven at 60°C for 48h to obtain 64g of 1, 2, 3, 4 -cyclobutane tetracarboxylic acid dianhydride (CBDA) .

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