《Stereoselective assembly of 3,4-epoxypyrrolines via nucleophilic addition induced domino cyclization of 6-halo-1-oxa-4-azahexatrienes》 was published in Organic Chemistry Frontiers in 2020. These research results belong to Smetanin, Ilia A.; Agafonova, Anastasiya V.; Rostovskii, Nikolai V.; Khlebnikov, Alexander F.; Yufit, Dmitry S.; Novikov, Mikhail S.. Application of 39546-32-2 The article mentions the following:
A two-step method for the preparation of 3,4-epoxypyrroline derivatives (6-oxa-3-azabicyclo[3.1.0]hex-2-enes) from 2-halo-2H-azirine-2-carboxylates, diazo keto esters and amines was developed. 6-Halo-1-oxa-4-azahexa-1,3,5-trienes, prepared in the first step from the azirines and diazo compounds under Rh(II) catalysis were subjected to nucleophile-induced tandem cyclization to afford highly functionalized rac-(1R,4R,5S)-6-oxa-3-azabicyclo[3.1.0]hex-2-enes in good yields. The stereochem. outcome of the tandem cyclization induced by the secondary amines was rationalized in terms of the structural rigidity of the betaine-type precursor due to the hydrogen bonding between the ammonium group and ester group adjacent to the halogen atom. Post-modification of the 3,4-epoxypyrrolines by the Stille cross-coupling, reduction, and UV-irradiation was also demonstrated.Piperidine-4-carboxamide(cas: 39546-32-2Application of 39546-32-2) was used in this study.
Piperidine-4-carboxamide(cas: 39546-32-2) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.Application of 39546-32-2
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem