Ethylene from acetylene

Tysoe WT, Nyberg GL, Lambert RM (1983) Photoelectron spectroscopy and heterogeneous catalysis benzene and ethylene from acetylene on Pd(lll). Surf Sci 135 128... 

A major difference between the V and Mo enzymes lies in substrate specificity and product formation.As is clearly shown in Table 7.9, the FeV nitrogenase has a much lower reactivity toward acetylene than does the Mo system. Furthermore, whereas the FeMo system exclusively produces ethylene from acetylene, the FeV system yields significant amounts of the four-electron reduction product, ethane. The detection of ethane in the acetylene assay may... 

Ethylene from acetylene derivatives s. 1, 59 Alcohols from a,/ -ethvlenecarboxylic acid esters s. 4, 91 CiC —C C... 

Palladium-carboni quinoline Ethylene from acetylene derivatives Partial and selective hydrogenation... 

W.T. Tysoe, G.L. Nyberg, and R.M. Lambert. Low Temperature Catalytic Chemistry of the Pd(lll) Surface Benzene and Ethylene from Acetylene Photoelectron Spectroscopy and Heterogeneous Catalysis Benzene and Ethylene from Acetylene on Palladium 111.7. Chem. Soc. Chem. Commun. 11 623 (1983). 

Palladium-lead-calcium carbonate Ethylene from acetylene derivs. with Lindlar catalyst... 

Palladium-lead-calcium carbonate quinoline Ethylene from acetylene derivatives with cycloisomerization... 

Lithium tetrahydridoaluminate/methanoI trans-Ethylene from acetylene derivs. Selective hydrogenation 1,2,4-Trienes... 

Synthesis of tran -ethylene from acetylene derivs. 

Trisubst. ethylene derivs. A soln. of (Z)-2-(l-butyl-l-hexenyl)-l,3,2-dioxaborinane in dry ether at —78° treated dropwise with a soln. of 2-lithiofuran (prepared from ethereal furan and -butyllithium at 0° for 0.5 h), stirred at -78° for 0.5 h and 0° for 1 h, solvent removed, methanol added at 0° followed by slow addition of a soln. of iodine in methanol with vigorous stirring at - 78°, 3 h later the mixture warmed to room temp, 3 M NaOH added, and worked up after 15 min 5-(2-furanyl)-(Z)-5-decene. Y 80%. This is part of a multistep regio- and geo-specific synthesis of ethylene from acetylene derivs., and is especially notable in that the product may contain 3 different groups on the unsaturation. F.e.s. H.C. Brown, N.G. Bhat, J. Org. Chem. 53, 6009-13 (1988). 

Lithium hydride-lithium liq. ammonia frans-Ethylene from acetylene derivatives with retention of hydroxyl groups... 

Reactions of sulfonium cyclopentadienylids a,/ -Ethylene- from acetylene-dicarboxylic acid esters... 

Syntheses via lithium alanates Ethylene from acetylene derivs. via hydroalumination... 

Stereospecific reduction fruns-Ethylene from acetylene derivatives... 

This peak includes residual ethylene as well as acetylene. The large broad peak is the solvent tetrahydrofuran. Figure 4 shown the separation of ethylene from acetylene. The last eight peaks on each chromatogram are standard injections of ethylene using the gas sampling valve. 

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