87116-33-4

Basic information

• Product Name: 2,4-dinitrobenzyl anion
• Synonyms: 2,4-dinitrobenzyl anion
• CAS NO: 87116-33-4
• Molecular Weight: 181.128
• Mol File: 87116-33-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 2,4-dinitrobenzyl anion(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-dinitrobenzyl anion(87116-33-4)
• EPA Substance Registry System: 2,4-dinitrobenzyl anion(87116-33-4)

Safety Data

• Hazardous Substances Data: 87116-33-4(Hazardous Substances Data)

Upstream product

• 67099-39-2 potassium 2-(2,4-dinitrophenyl)acetate 
• 121-14-2 2,4-dinitrotoluene 

Downstream Products

• 121-14-2 2,4-dinitrotoluene 

Relevant articles and documents

A Spectrophotometric Study of 4-Nitro-, 2,4-Dinitro- and 2,4,6-Trinitrobenzyl Carbanions. Decarboxylation of (Nitrophenyl)acetate Anions

A spectrophotometric study of the reactions of the potassium salts of (2,4,6-trinitrophenyl)acetic acid (3), (2,4-dinitrophenyl)acetic acid (4), and (4-nitrophenyl)acetic acid (5) in Me2SO, THF, and DME is reported, including the effect of catalysis by crown ether 1.These processes are believed to give rise to the corresponding carbanions resulting from decarboxylation.The UV-visible spectrum of the species obtained from reaction of 3 agrees well with literature data for the expected carbanion 6, but there is some discrepancy regarding the species derived from 4 and 5.From the decay of the absorption spectra with time, the stabilities of the benzyl carbanions in these systems correspond to 2,4,6-trinitrobenzyl > 2,4-dinitrobenzyl > 4-nitrobenzyl.

Solvent Dependence of the Ionization of Nitrophenylmethanes

The solvent dependence of proton abstraction from various nitrophenylmethanes has been examined for aqueous dimethyl sulphoxide and methanolic dimethyl sulphoxide solutions.Even though the compounds studied vary considerably in thermodynamic acidity (pKa), their proton-abstraction rates all show the same solvent dependence.It is suggested that the transition states for these reactions all occur at similar positions on the reaction pathway, and that transition state imbalances exist for these proton transfers.