D. Reyx, Irène Campistron, P. Heiling
Jan 22, 1982
Citations
0
Influential Citations
7
Citations
Journal
Macromolecular Chemistry and Physics
Abstract
α,ω-Dimethoxycarbonyl substituted polyenes were synthesized by co-metathesis between 1,5-cyclooctadiene (1) and dimethyl 3-hexenedioate (2) by use of the catalytic system WCl6/Sn(CH3)4. The ability of 2 for co-metathesis with 1 was proved by determination of the distribution of low molecular weight products in terms of reaction time and 2/1 mole ratio. For these studies, high values of 2/1 ratios (0,5–4) were chosen in order to obtain lowest molecular weight co-metathesis products (3b–3e). Metathesis involved preferentially the double bonds in the neighbourhood of the ester groups. At lower values of the 2/1 ratio (0,012–0,061) α,ω-difunctional prepolymers (3i) were synthesized.