N-Vinyl-2-pyrrolidinone

PVP-PdCl2= palladium anchored on poly(N-vinyl-2-pyrrolidinone) Zhang, Y. Liao. S. Xu, Y. Tetrahedron Lett., 1994, 35, 4599... 

N-Vinyl-2-Pyrrolidinone. Commonly called vinylpyrrolidinonc or VP, Af-vinyl-2-pyrrolidinone is a clear, colorless liquid that is miscible in all proportions with water and most organic solvents. IL can polymerize slowly by itself but can be easily inhibited by small amounts of ammonia, sodium hydroxide (caustic pellets), or antioxidants such as N, V -di-xeobutyl-p-phcnylcncdiaminc. It is stable in neutral or basic aqueous solution but readily hydrolyzed in the presence of acid to form 2-pyrrolidinonc and acetaldehyde. Properties are given in Table 1. 

Examples of the versatility of photochemical hetero Diels-Alder photocycloadditions have also been reported. Thus, the 2,4,6-triphenylpyrylium terafluoroborate (TPT) photocatalyzed reaction of arylimines with N-vinyl-2-pyrrolidinone and N-vinylcarbazole represents a convenient approach for the preparation of tetra-hydroquinoline derivatives under mild conditions (Scheme 9.31) [52],... 

Beilstein Handbook Reference) BRN 0110513 EINECS 201-800-4 NSC 10222 V-Pyrol Vinyl-2-pyrrolidone Vinylbutyrolactam Vinylpyrrolidin-one N-Vinyl-2-pyrrolidinone Vinylpyrrolidone N-Vinyl-2-pyrfolidone N-Vinyl pynolidone N-Vinylpyrrolidin-one. Liquid mp = 13.5 bp400 = 193 , bpii = 93 d = 1.04. 

In a related manner but at ambient presure, unsaturated esters have been derived by, for example in 85% yield, the reaction of N-vinyl-2-pyrrolidinone with... 

YNTHETIC HYDROGEL POLYMERS, first introduced in the early 1960s, made a major impact, initially in the soft contact lens field, and more recently in other biomedical or specialty applications. The first synthetic poly(2-hy-droxyethyl methacrylate) [poly(HEMA)] hydrogel developed by Wichterle (i) remains very important, as do its copolymers with monomers such as N-vinyl-2-pyrrolidinone, acrylic and methacrylic acids, glycerol methacrylate, various acrylamides, and alkoxyalkyl methacrylates. 

Copolymer of HEM A, N-vinyl-2-pyrrolidinone, methacrylic acid, and cross-linker. 

Synonyms Crospolyvidone Crospovidinum Crosslinked PVP 1-Ethenyl-2-pyrrolidinone homopolymer Insoluble polyvidone Insoluble PVP Polyvidonum insoluble, crosslinked Poly(vinyipoiypyrroiidone) Polyvinylpyrrolidone, crossiinked PVPP 2-Pyrrolidinone, 1-ethenyi-, homopolymer 1-Vinyi-2-pyrrolidinone homopolymer Definition Water-insol. synthetic crosslinked homopolymer of N-vinyl-2-pyrrolidinone Empincal (C6HsNO)n... 

Micelles N-isopropylacrylamide, N-vinyl-2-pyrrolidinone, and PEG acrylate 50 BxPC3, AsPCl, MiaPaca, XPA-LXPA-2, PL-11, PL-12, PL-18, PK-9, and Pane 2.03 [137]... 

Four monomers were chosen for the preparation of multi-component hydrogels 2-hydroxyethyl methacrylate (HEMA), N-vinyl-2-pyrrolidinone (NVP), and poly(ethylene glycol) methacrylate (PEGMA) with average Mn of 360 were from Aldrich Chemical Company and purified by distillation 2-(N-ethylperfluorooctanesulfonamido)ethyl acrylate (FOSA) from 3 M and purified by recrystallisation firom methanol. 

White, T.J., Liechty, W.B., Natarajan, L.V., Tondiglia, V.P., Bunning, T.J., Guymon, C.A. The influence of N-vinyl-2-pyrrolidinone in polymerization of holographic polymer dispersed liquid crystals (HPDLCs). Polymer 47, 2289-2298 (2006)... 

J. Pieracci, D.W. Wood, J.V. CriveUo, G. Belfort, UV-assisted graft polymerization of N-vinyl-2-pyrrolidinone onto poly (ether sulfone) ultrafiltration membranes Comparison of dip versus immersion modification techniques, Chem Mater, 12 (2000) 2123-2133. 

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