54900-09-3

Basic information

• Product Name: butane-1,4-diyl bis(4-nitrobenzoate)
• CAS NO: 54900-09-3
• Molecular Formula: C₁₈H₁₆N₂O₈
• Molecular Weight: 388.3282
• Mol File: 54900-09-3.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 567.1°C at 760 mmHg
• Flash Point: 234.2°C
• Density: 1.373g/cm³
• Vapor Pressure: 7.08E-13mmHg at 25°C
• Refractive Index: 1.597
• CAS DataBase Reference: butane-1,4-diyl bis(4-nitrobenzoate)(CAS DataBase Reference)
• NIST Chemistry Reference: butane-1,4-diyl bis(4-nitrobenzoate)(54900-09-3)
• EPA Substance Registry System: butane-1,4-diyl bis(4-nitrobenzoate)(54900-09-3)

Safety Data

• Hazardous Substances Data: 54900-09-3(Hazardous Substances Data)

Upstream product

• 110-63-4 Butane-1,4-diol 
• 122-04-3 4-nitro-benzoyl chloride 
• 110-52-1 1,4-dibromo-butane 
• 15922-01-7 potassium 4-nitrobenzoate 
• 110-56-5 1,4-dichlorobutane 
• 62-23-7 4-nitro-benzoic acid 

Downstream Products

• 53122-21-7 1,4-bis(4-aminobenzoyloxy)butane 

Relevant articles and documents

Organocatalytic Double Ugi Reaction with Statistical Amplification of Product Enantiopurity: A Linker Cleavage Approach to Access Highly Enantiopure Ugi Products

Here we report an organocatalytic double Ugi reaction combining the enantioselective process and ee enhancement in a single operation to afford the chiral Ugi products with very high ee values. Both bisisocyanides and bisanilines tethered by carbonate and diester, respectively, were designed to accomplish this double multicomponent reaction that formed 10 new chemical bonds (4 C-N, 2 C-C, 2 C-O, and 2 N-H bonds). The strategy was further applied for the fast construction of an enantiomerically enriched macrocycle.

Esterification of carboxylic acids with alkyl halides using imidazolium based dicationic ionic liquids containing bis-trifluoromethane sulfonimide anions at room temperature

Task-specific room temperature ionic liquids (RTILs) composed of symmetrical N-methylimidazolium rings linked with a short oligo (ethylene glycol) chain (cationic part) and bis-trifluoromethane sulfonimide (NTf2, anionic part) were successfully synthesized, and their physicochemical properties were determined by various modern analytical techniques. The catalytic activity of the synthesized RTILs was evaluated in the esterification reaction of acids with alkyl halides in solvent-free conditions at room temperature. From the screening test, all the synthesized RTILs showed a high yield with significant selectivity for respective esters in a very short reaction time. Especially, 0.1 equimolar of RTIL-1 ([tetraEG(mim)2][NTf2]2) was found to be, the most efficient and reusable catalyst for this reaction. As a result, 100% conversion and up to a 94% yield of the respective ester product was obtained in a 30 min reaction time. This might be due to their synergetic effect of Lewis acidity, wide liquid range, and high miscibility compared to the other homogeneous and heterogeneous catalysts. Beside this, RTIL was easily separated from the reaction mixture and reused several times without any significant loss of catalytic activity and structural property. The present dicationic ionic liquids (ILs) under a solvent-free catalytic system were found to be kinetically fast, naturally benign, and achieved good yields for esterification of carboxylic acids with alkyl halides.