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)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36

RIDADR 

1759

WGK Germany 

3

F 

9-21

HazardClass 

8

PackingGroup 

III

HS Code 

29172090

MSDS

• Language:English Provider:Cyclobutane-1,2,3,4-tetracarboxylic dianhydride
• Language:English Provider:SigmaAldrich

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) .

Cyclobutane-1,2,3,4-tetracarboxylic dianhydride(4415-87-6)Related Product Information

• Cyclobutanemethanol
• Cyclobutylamine
• CYCLOBUTYLBORONIC ACID
• Cyclobutanecarbonyl chloride
• 2-ETHYL-3-METHYLBUTANOIC ACID
• 4-methoxybutyric acid
• 3-METHYLGLUTARIC ACID
• 6-METHOXY-HEXANOIC ACID
• Methyl 4-methoxybutanoate
• ETHYL 4-ACETOXYBUTANOATE
• 1,6-DIMETHOXYHEXANE
• 4-Methylvaleric acid
• ETHYL HYDROGEN GLUTARATE
• Ethyl isovalerate
• (S)​-2-​methyl-Butanedioic acid-1-​methyl ester
• MESO-2,3-DIMETHYLSUCCINIC ACID
• Cyclobutane-1,2,3,4-tetracarboxylic dianhydride
• ISOBUTANE