70776-23-7

Basic information

• Product Name: Bis(cyanoacetic)anhydride
• Synonyms: Bis(cyanoacetic)anhydride;Acetic acid, cyano-, anhydride;2-Cyanoacetic anhydride
• CAS NO: 70776-23-7
• Molecular Formula: C6H4N2O3
• Molecular Weight: 152.10756
• Mol File: 70776-23-7.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 310.7°Cat760mmHg
• Flash Point: 134.8°C
• Appearance: /
• Density: 1.323g/cm³
• Vapor Pressure: 0.00059mmHg at 25°C
• Refractive Index: 1.459
• CAS DataBase Reference: Bis(cyanoacetic)anhydride(CAS DataBase Reference)
• NIST Chemistry Reference: Bis(cyanoacetic)anhydride(70776-23-7)
• EPA Substance Registry System: Bis(cyanoacetic)anhydride(70776-23-7)

Safety Data

• Hazardous Substances Data: 70776-23-7(Hazardous Substances Data)

Usage

InChI:InChI=1/C6H4N2O3/c7-3-1-5(9)11-6(10)2-4-8/h1-2H2

Upstream product

• 372-09-8 cyanoacetic acid 
• 407-25-0 trifluoroacetic anhydride 

Relevant articles and documents

Method for producing 2-cyanoacetic acid anhydride and further reaction products thereof

The present invention relates to a process for producing 2-cyanoacetic acid anhydride, comprising the steps of a) preparing a reaction mixture, containing as reactants 2-cyanoacetic acid, and at least one C4-20 carboxylic acid anhydride in at least one organic solvent, wherein the molar ratio of 2-cyanoacetic acid to C4-20 carboxylic acid anhydride in said reaction mixture is greater than 1.5:1, and b) subjecting the reaction mixture to a temperature of 0°C to 100°C to form 2-cyanoacetic acid anhydride. The present invention also relates to process for producing 2-cyanoacetic acid esters, 2-cyanoacetic acid amides and/or 2-cyanoacetic acid thioesters from 2-cyanoacetic acid anhydride.