Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate. They perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Quality Control of 870-50-8.
Kabes, Connor Q.;Maximuck, William J.;Ghosh, Subrata K.;Kumar, Anil;Bhuvanesh, Nattamai;Gladysz, John A. research published 《 Chiral Tricationic Tris(1,2-diphenylethylenediamine) Cobalt(III) Hydrogen Bond Donor Catalysts with Defined Carbon/Metal Configurations; Matched/Mismatched Effects upon Enantioselectivities with Enantiomeric Chiral Counter Anions》, the research content is summarized as follows. The enantiopure and diastereopure salts Λ- or Δ-[Co((S,S)-dpen)3]3+ 2Cl–BArf– (Λ- or Δ-(S,S)-13+ 2Cl–BArf–; dpen/BArf = 1,2-diphenylethylenediamine/B(3,5-C6H3(CF3)2)4) and Λ-(S,S)-13+ 3Cl– are treated with salts of the enantiopure chiral monoanions (A–) or dianions (A2-) 3-bromocamphor-8-sulfonate (camphSO3–), 1,1′-binaphthyl-2,2′-diyl phosphate (and three 3,3′-disubstituted derivatives), a related biphenanthryl species, tartrate, and Sb2(tart’)22- (tart’ = [–O2C-CHO–-CHO–-CO2–]). The lipophilic salts Λ- or Δ-(S,S)-13+ 2A–BArf–, Λ-(S,S)-13+ A2-BArf–, and Λ-(S,S)-13+ 3A– are isolated as hydrates and characterized by NMR and microanalyses. In the presence of tertiary amines, many of these are highly enantioselective catalysts for additions of 1,3-dicarbonyl compounds to trans-β-nitrostyrene and di-tert-butylazodicarboxylate. The ee values for diastereomeric salts can exhibit significant differences (avg/high/median Δ%ee = 10/63/6; matched/mismatched effect), and in a few cases, they are better than those obtained with Λ- or Δ-(S,S)-13+ 2Cl–BArf–. The crystal structure of Δ-(S,S)-13+ 2(1S)-camphSO3–BArf– shows that the two sulfonate moieties H-bond to opposite (idealized) C3-sym. faces of the trication, with a sep. O atom associated with each of the three syn-periplanar NH groups.
870-50-8, Di-tert-butyl azodicarboxylate, also known as Di-tert-butyl azodicarboxylate, is a useful research compound. Its molecular formula is C₁₀H₁₈N₂O₄ and its molecular weight is 230.26 g/mol. The purity is usually 95%.
Di-tert-butyl azodicarboxylate is a reagent used in the electrophilic amination of β-keto esters catalyzed by an axially chiral guanidine. Building block in an enantioselective synthesis of 3,6-dihyropyridazines employing organocatalysts such a L-proline or (S)-2-pyrrolidinyl tetrazole. Utilized in the asymmetric Friedel-Crafts amination via a chiral organocatalyst.
Di-tert-butyl azodicarboxylate is a reagent used in the preparation of acyl hydrazinedicarboxylates via photoorganocatalytic hydroacylation of dialkyl azodicarboxylates with aldehydes in presence of phenylglyoxylic acid as photocatalyst., Quality Control of 870-50-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics