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Norbornadiene
About: Norbornadiene is a research topic. Over the lifetime, 2389 publications have been published within this topic receiving 38603 citations.
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TL;DR: In this article, the energy dependence of the anisotropy parameters of the π and selected σ-bands of ethylene, 1,3-butadiene, benzene, cyclohexene and norbornadiene has been determined in the low energy region.
9 citations
TL;DR: In this paper, the 2:1 adducts were regioselective with the two CO2Et groups on the unsaturated bonds involved in the cycloadditions being 1,4 to each other in the 1:1 cycloadducts.
9 citations
TL;DR: In this paper, a suspension of commercial WCl 4 initiates rapid polymerization of norbornene and norbornadiene under mild conditions, if norbornenyl acetate is used as a substrate, and homogeneous polymerization occurs.
Abstract: A suspension of commercial WCl 4 initiates rapid polymerization of norbornene and norbornadiene under mild conditions. If norbornenyl acetate is used as a substrate, WCl 4 is dissolved and homogeneous polymerization occurs. In both cases polymers ( M w = about 80 000 ), the structure of which corresponds to the ring-opening metathesis mode of polymerization, were prepared. WCl 4 has also been found to polymerize monosubstituted acetylenes (benzene, 50°C). Poly( t -butylacetylene) of M w = 600 000 , poly(phenylacetylene) of M w = 200 000 and poly(1-hexyne) of M w = 14 000 were prepared in high yields. When WCl 4 was dissolved in the reaction with oxygen-containing compounds (e.g. methyl acetate, acetylacetone, acetophenone) before substrate addition, catalyst activity increased significantly. WCl 4 in 1,4-dioxane was found to be a very active system for phenylacetylene polymerization; it polymerizes this monomer at the monomer-to-catalyst mole ratio equal to 1000 providing polymer of M w = 400 000 .
9 citations
TL;DR: In this article, a concise synthetic route to highly substituted pentalenones was described, where the key step is a Pauson-Khand reaction of norbornadiene with the functionalized acetylenes to give the methanoindenone derivatives.
9 citations
TL;DR: In this article, the NMR spectra of 2,5-norbornadiene (Nbd)-quadricyclene valence and trans-cis-stilbene photoisomerization in THF at 366 nm were analyzed.
9 citations