Polyesters are important plastics, with monomers linked by ester moieties. Phosphoesters form the backbone of DNA molecules. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate.Nitrate esters, such as nitroglycerin, are known for their explosive properties. Category: esters-buliding-blocks.
Dai, Jun;Wang, Zhuang;Deng, Yuhua;Zhu, Lei;Peng, Fangzhi;Lan, Yu;Shao, Zhihui research published 《 Enantiodivergence by minimal modification of an acyclic chiral secondary aminocatalyst》, the research content is summarized as follows. By designing a class of reactive and stereoselective organocatalysts, acyclic chiral secondary amines, e.g., [(2S)-1-(diethylamino)-3-phenylpropan-2-yl](2-methylpropyl)amine, a method for achieving the enantiodivergence is developed simply by changing the secondary N-i-Bu- to N-Me-group within the catalyst architecture while maintaining the same absolute configuration of the catalysts, which modulates the catalyst conformation. This catalyst-controlled enantiodivergent method not only enable challenging asym. transformations to occur in an enantiodivergent manner but also features a high level of stereocontrol and broad scope that is demonstrated in eight different reactions (90 examples), all delivering both enantiomers of a range of structurally diverse products, e.g., tert-Bu ((3S,4R)-4-methyl-2-oxo-3-(phenylethynyl)tetrahydrofuran-3-yl)carbamate including hitherto less accessible, yet important, compounds in good yields with high stereoselectivities.
Category: esters-buliding-blocks, 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., 870-50-8.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics