In heterogeneous catalysis, catalysts provide a surface to which reactants bind in a process of adsorption. In homogeneous catalysis, catalysts are in the same phase as the reactants. 100-13-0, Name is 1-Nitro-4-vinylbenzene, molecular formurla is C8H7NO2. In a document, author is Mawad, Nasser, introducing its new discovery. Application In Synthesis of 1-Nitro-4-vinylbenzene.
Synthesis and Crystal Structure of 3,3,6,6-Tetramethylmorpholine-2,5-dione, and Its 5-Monothioxo and 2,5-Dithioxo Derivatives
The synthesis of 3,3-dimethylmorpholine-2,5-diones 4a was achieved conveniently via the ‘direct amide cyclization’ of the linear precursors of type 3, which were prepared by coupling of 2,2-dimethyl-2H-azirin-3-amines 2 with 2-hydroxyalkanoic acids 1. Thionation of 4a with Lawesson’s reagent yielded the corresponding 5-thioxomorpholin-2-ones 10 and morpholine-2,5-dithiones 11, respectively, depending on the reaction conditions. The structures of 3aa, 4aa, 10a, and 11a were established by X-ray crystallography. All attempts to prepare S-containing morpholine-2,5-dione analogs or thiomorpholine-2,5-diones by cyclization of corresponding S-containing precursors were unsuccessful and led to various other products. The structures of some of them have also been established by X-ray crystallography.
Future efforts will undeniably focus on the diversification of the new catalytic transformations. These may comprise an expansion of the substrate scope from aromatic and heteroaromatic compounds to other hydrocarbons. 100-13-0, you can contact me at any time and look forward to more communication. Application In Synthesis of 1-Nitro-4-vinylbenzene.
Reference:
Thiomorpholine – Wikipedia,
,Thiomorpholine | C4H9NS – PubChem