Showing papers on "Ring-opening metathesis polymerisation published in 1986"
TL;DR: In this article, the authors found tungsten(VI)-imido complexes to be active catalysts for the metathesis of carbodiimides and analyzed the reaction products using GC/MS.
33 citations
TL;DR: In this paper, the possibilities for the synthesis of stereoregular fluoropolymers via ring opening of substituted bicyclo[2.2.1]-heptenes and -heptadienes are reviewed.
16 citations
TL;DR: In this article, a carbyne complex was used as the starting metathesis catalyst for cyclopentene ring-opening reaction in the presence of disubstituted alkynes.
10 citations
TL;DR: In this paper, the synthesis of 1, 4-cyclohexadiene (1, 4 -CHD) by metathesis was investigated using a continuous flow system over a CsNO3-Re2O7-Al2O3 catalyst in the liquid phase at atmospheric pressure.
Abstract: The synthesis of 1, 4-cyclohexadiene(1, 4-CHD) by metathesis of 1, 4-hexadiene was investigated. The reaction was carried out using a continuous-flow system over a CsNO3-Re2O7-Al2O3 catalyst in the liquid phase at atmospheric pressure. The catalyst appeared to be very active and selective for the metathesis. All the reaction products were metathesis products except small amounts of benzene, cyclohexene and 1, 3-CHD. 1, 4-CHD could be obtained with a yield of 50% per pass under such mild reaction conditions as 60°C and W/F: 6g-cat•h/mol. It is considered that 1, 4-CHD synthesis by the metathesis is superior to the known processes and it provides a new effective method. Furthermore, the pathways of the formation of reaction products and a reaction scheme have been discussed in detail.
2 citations
TL;DR: In this article, the metathesis reaction of cycloolefins is a ring-opening polymerization with a metallacyclobutane system as the key intermediate.
Abstract: The metathesis reaction of cycloolefins is a ring-opening polymerization with a metallacyclobutane system as the key intermediate. A kinetically and a thermodynamically controlled regime of the reaction clearly can be distinguished, the latter being characterized by a ring-chain equilibrium.
2 citations