627-20-3Relevant articles and documents
Poutsma,M.L.,Kartch,J.L.
, p. 6595 - 6604 (1967)
Preference for structural versus geometric isomerization in the BCl3-catalyzed thermal isomerizations of gaseous 1,2-dimethylcyclopropane
Kalra, Bansi L.,Clark, Kimber G.,Lewis, David K.
, p. 263 - 264 (1988)
The thermal isomerization reactions of gaseous cis- and trans-1,2-dimethylcyclopropane have been studied in the presence and absence of boron trichloride, in a static reactor at 574 3, but the normally slower structural rearrangements become the dominant reactions in the presence of catalyst. Mechanistic implications are discussed.
Horner et al.
, p. 4023 (1968)
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Brown,Zweifel
, p. 1512 (1959)
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CATALYTIC HYDROCARBON DEHYDROGENATION
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Paragraph 0056; 0122; 0123, (2021/03/13)
A catalyst for dehydrogenation of hydrocarbons includes a support including zirconium oxide and Linde type L zeolite (L-zeolite). A concentration of the zirconium oxide in the catalyst is in a range of from 0.1 weight percent (wt. %) to 20 wt. %. The catalyst includes from 5 wt. % to 15 wt. % of an alkali metal or alkaline earth metal. The catalyst includes from 0.1 wt. % to 10 wt. % of tin. The catalyst includes from 0.1 wt. % to 8 wt. % of a platinum group metal. The alkali metal or alkaline earth metal, tin, and platinum group metal are disposed on the support.
Carbonylative, Catalytic Deoxygenation of 2,3-Disubstituted Epoxides with Inversion of Stereochemistry: An Alternative Alkene Isomerization Method
Lamb, Jessica R.,Hubbell, Aran K.,MacMillan, Samantha N.,Coates, Geoffrey W.
supporting information, p. 8029 - 8035 (2020/05/01)
Reactions facilitating inversion of alkene stereochemistry are rare, sought-after transformations in the field of modern organic synthesis. Although a number of isomerization reactions exist, most methods require specific, highly activated substrates to achieve appreciable conversion without side product formation. Motivated by stereoinvertive epoxide carbonylation reactions, we developed a two-step epoxidation/deoxygenation process that results in overall inversion of alkene stereochemistry. Unlike most deoxygenation systems, carbon monoxide was used as the terminal reductant, preventing difficult postreaction separations, given the gaseous nature of the resulting carbon dioxide byproduct. Various alkyl-substituted cis- A nd trans-epoxides can be reduced to trans- A nd cis-alkenes, respectively, in >99:1 stereospecificity and up to 95% yield, providing an alternative to traditional, direct isomerization approaches.
