The formation of cyclo-addition adducts in the reaction of an acetylene-terminated material with a bismaleimide: A model compound study for addition-type thermoplastics (ATTs) using metal catalysts
- NASA Langley Research Center, Hampton, VA (United States)
A model compound study using an acetylene-terminated material and a bismaleimide has provided evidence that a diruthenium complex Ru{sub 2}(CO){sub 6}[1,2-({mu}-PPh){sub 2}C{sub 6}H{sub 4}] and a rhodium complex Rh(PPh{sub 3}){sub 3}Cl can catalyze a Diels-Alder type cycloaddition in which acetylene-terminated material acts as a diene and the bismaleimide is a dieneophile. The molten state reaction of N-(3-ethynylphenyl) phthalimide and N-(4-phenoxyphenyl) maleimide with Ru{sub 2}(CO){sub 6}[{mu}-(PhP){sub 2}C{sub 6}H{sub 4}] or Rh(PPh{sub 3}){sub 3}Cl heated to 170{degrees}C led to two major products. The spectral data for the first major product is consistent with a 2:1 Diels-Alder adduct formed from two molecules of the acetylene compound and one molecule of the maleimide. The spectral data for the second major product is consistent with a 2:2 Diels-Alder adduct formed from two molecules of each reactant.
- OSTI ID:
- 141554
- Report Number(s):
- CONF-930304-; TRN: 93:003688-1234
- Resource Relation:
- Conference: 205. American Chemical Society national meeting, Denver, CO (United States), 28 Mar - 2 Apr 1993; Other Information: PBD: 1993; Related Information: Is Part Of 205th ACS national meeting; PB: 1951 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Chemistry of [Cp[sup *]Rh([mu]-Cl)][sub 2] and its dioxygen and nitrosobenzene insertion products
Isolation and characterization of a dimeric ruthenium(II) complex. An intermediate in the ruthenium-catalyzed oxygen oxidation of thioethers to sulfoxides