1517-53-9Relevant articles and documents
Rabinovitch,Looney
, p. 2439 (1955)
Nuclear spin isomers of ethylene: Enrichment by chemical synthesis and application for NMR signal enhancement
Zhivonitko, Vladimir V.,Kovtunov, Kirill V.,Chapovsky, Pavel L.,Koptyug, Igor V.
, p. 13251 - 13255 (2013)
Taking CH2CH2 for a spin: Enrichment of the nuclear spin isomers of ethylene was achieved by a catalytic reaction of acetylene with parahydrogen (see scheme). The spin isomers were used for NMR signal enhancement, both with and without subjecting them to a chemical reaction. The interconversion times of the nuclear spin isomers were evaluated at ambient pressure, thus revealing extremely long-lived spin states with lifetimes of (1000±400)s.
Ethylene Formation from 1-Aminocyclopropanecarboxylic Acid by the Reaction of Molecular Oxygen and Dihydropyperidine Mediated by Flavin Mononucleotide and Mn(II) ion
Okamoto, Tadashi,Shimada, Mikio,Oka, Shinzaburo
, p. 817 - 820 (1987)
Oxidation of 1-aminocyclopropanecarboxylic acid by O2 in the presence of 1-benzyl-3-carbamoyl-1,4-dihydropyridine, Mn(II) ion, and flavin mononucleotide reproduced the biological ethylene forming reaction in plant tissues with respect to products, stereoc
Bigeleisen et al.
, p. 497,498 (1963)
Concerted and nonconcerted pathways for thermal conversions of deuterium-labeled cyclohexenes to butadienes and ethylenes
Lewis, David K.,Brandt, Benjamin,Crockford, Lisa,Glenar, David A.,Rauscher, Grant,Rodriguez, Julio,Baldwin, John E.
, p. 11728 - 11734 (1993)
The retro Diels-Alder reactions of cyclohexene-3,3,6,6-d4 and the 4,5-cis isomers of cyclohexene-1,2,3,4,5,6-d6 have been followed using single-pulse shock tube kinetic and tunable diode laser infrared spectroscopic techniques. At te
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Pirrung, Michael C.
, p. 7207 - 7209 (1983)
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Flanagan,Rabinovitch
, p. 724,730 (1956)
The Stereochemistry of Oxidation of 1-Amino-cyclopropanecarboxylic Acid
Baldwin, Jack E.,Jackson, David A.,Adlington, Robert M.,Rawlings, Bernard J.
, p. 206 - 207 (1985)
Whereas hypochlorite oxidation of 1-amino-cis-cyclopropane carboxylic acid yields ethylene with retention of stereochemistry the use of transition metal oxidants, such as copper(II), permanganate, and ferrate ions gives completely scrambled cis- and trans-ethylene as is found in the biosynthethic process.
Ovcharenko et al.
, (1975)
On the Pd-catalyzed vinylation of aryl halides with tris(alkoxy) vinylsilanes in water
Gordillo, Alvaro,Jesus, Ernesto de,Lopez-Mardomingo, Carmen
supporting information; scheme or table, p. 4584 - 4585 (2009/09/24)
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Stereochemistry of the thermal conversion of 1-vinyl-2,3-cis-dideuteriocyclobutane to butadiene and 1,2-dideuterioethylenes
Lewis, David K.,Hutchinson, Avery,Lever, Steven J.,Spaulding, Eric L.,Bonacorsi Jr., Samuel J.,Baldwin, John E.
, p. 233 - 237 (2007/10/03)
This study has examined the stereochemistry of the decomposition at 900-1000 K in a single-pulse shock tube of 1-vinyl-2,3-cis-dideuteriocyclobutane to ethylenes and buta-1,3-dienes. The deuterated ethylenes formed during the decomposition, CHD=CH2, (E)-CHD=CHD, and (Z)-CHD=CHD, were quantified via two independent techniques, FTIR and IR absorption spectroscopy using a tunable diode laser spectrometer. The results of both analyses indicated that equal amounts of (E)-CHD=CHD and (Z)-CHD=CHD were formed from the cis-labeled reactant. In an earlier shock tube study of the decomposition at 1000-1200 K of two deuterium-labeled cyclohexenes to ethylenes plus buta-1,3-dienes, a pathway via a vinylcyclobutane intermediate was implicated in a significant fraction of the decomposition events; the measured ratios of (E)-CHD=CHD to (Z)-CHD=CHD in that study were consistent with a complex mechanistic model in which the stereochemistry of deuterium labels in the cyclohexene reactant was lost in ethylene products formed via vinylcyclobutane. The present results provide additional support for that model.