Ethenyl

TRf S]-2- [2-(-Ethenyl-4- piperidinyl)-acetyl]-lH- indole-3)-ethanol (piperidinyl indole) ... 

Using ethene in ethanoic acid at 70-80 C it is possible to prepare vinyl acetate (ethenyl ethanoate) in good yields. 

Bromo-3-[2-(t-butoxycarbonylamino)-2-(ethoxy-carbonyl)ethenyl]-l (4 methylphenylsulfonyl) 2-Methylbut-3-en-2-ol, Pd(PPh3)203, Ag2C03, EtjN 83 [3]... 

Ethenyl, see Vinyl Ethoxalyl C2H5—OOC—CO— ethanoyl) Glycyl H2N—CH2—CO—... 

Diethylamino)phenyl]-4,5-dihydro-l-phenyl-lH-pyra2ol-3 -yl]ethenyl]-N,N-diethylben2enamine, (5-(p-diethyl aminophenyl)-l-phenyl-3-(p-diethylamino-styryl)pyra2oline) [57609-72-0]... 

A Vinyl-2-pyrrolidinone. l-Ethenyl-2-pyrrohdinone [88-12-0] C H NO, A/-vinylpyrrohdinone, was developed by Reppe s laboratory in Germany at the beginning of World War II and patented in 1940 (215). 

Vinyl acetate (ethenyl acetate) is produced in the vapor-phase reaction at 180—200°C of acetylene and acetic acid over a cadmium, 2inc, or mercury acetate catalyst. However, the palladium-cataly2ed reaction of ethylene and acetic acid has displaced most of the commercial acetylene-based units (see Acetylene-DERIVED chemicals Vinyl polymers). Current production is dependent on the use of low cost by-product acetylene from ethylene plants or from low cost hydrocarbon feeds. 

Chloto-3-((1,3-dihydto-l,3,3-ttimethyl-2JT-indol-2-yHdene)ethyHdene)-1-cyclohexen-l-yl)ethenyl)-1,3,3-ttimethylindoHumpetchlotate. 

Nitrovin. 2- 3-(5-Nitro-2-furanyl)-l-[2-(5-nitro-2-furanyl)ethenyl]-2-propenyhdene hydrazinecarboximidamide hydrochloride has been marketed for both human and veterinary use as an antibacterial agent. The product, which has also seen use as a veterinary food additive (32), is prepared from 5-nitro-2-furan-carboxaldehyde and acetone followed by treatment of the resulting dione with aininoguariidine (33). 

Furalazine, Acetylfuratrizine, Panfuran-S. Heating nitrovin in butanol or dimethylformamide at 100—130°C affords furalazine, 6-[2-(5-nitro-2-furanyl)ethenyl]-l,2,4-triazine-3-amine (34). An improved synthesis originates with 5-nitro-2-furancarboxaldehyde and acetone, proceeds through 4-(5-nitro-2-furanyl)-3-buten-2-one followed by a selenium dioxide oxidation to the pymvaldehyde hydrate, and subsequent reaction with aininoguariidine (35). Furalazine, acetylfuratrizine (36), and the A[-A/-bis(hydroxymethyl) derivative, Panfuran-S, formed from the parent compound and formaldehyde (37), are systemic antibacterial agents. 

Vinyl-2-PyrroHdinone. l-Vinyl-2-pyrroHdinone (VP) (l-ethenyl-2-pyrroHdinone, A/-vinyl-2-pyrroHdone, and V-Pyrol) is manufactured by ISP in the United States and by BASF in Germany by vinylation of 2-pyrroHdinone with acetylene. It forms the basis for a significant specialty polymer and copolymer industry and consumes the primary portion of aH 2-pyrroHdinone manufactured (see Vinyl polymers, n-vinyl monomers and polymers). 

Vinyl acetate [108-05-4] (VAc), CH2=CHOOCCH2, the ethenyl ester of acetic acid, is primarily use for the manufacture of poly(vinyl acetate) [9003-20-7] (PVAc) and vinyl acetate copolymers. Poly(vinyl acetate) homo- and copolymers are found as components in coatings, paints and sealants, binders (adhesives, nonwovens, constmction products, and carpet-backing), and miscellaneous uses such as chewing gum and tablet coatings. AppHcations have grown over the years in a number of areas (1 4). 

The Chemical Abstracts Services Registry Number and lUPAC nomenclature for PVP are [9003-39-8] and l-ethenyl-2-pyrrohdinone homopolymer, respectively however, it is known by a variety of approved names by foreign and domestic regulatory authorities. For example ... 

Solvent Evaporation from Solutions of Thermoplastic Polymers. A solution of a copolymer of vinyl chloride (chloroethene) [75-01-4] C2H2CI, vinyl acetate (acetic acid ethenyl ester) [108-05-4] and a hydroxy-functional vinyl monomer having a number average molecular... 

The additional coupling (9.8 Hz) of the cyclopropane proton A at <5// = 1.60 is the result of a vicinal H atom in the side-chain. This contains a methyl group B, a vinyl group C and an additional substituted ethenyl group D, as may be seen from the one dimensional H and C NMR spectra and from the CH COSY diagram. 

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