Progress toward new catalysts for acyclic diene metathesis (ADMET) polymerization reactions

Autor:	A. Scott Gamble, Laura L. Blosch, James M. Boncella
Rok vydání:	1992
Předmět:	chemistry.chemical_compound Aniline Ethylene chemistry Polymerization Polymer chemistry General Engineering Ring-opening metathesis polymerisation ROMP Metathesis Acyclic diene metathesis Catalysis
Zdroj:	Journal of Molecular Catalysis. 76:229-237
ISSN:	0304-5102
Popis:	The compounds Tp′W(CHR)(E)X (Tp′= hydridotris(3,5-dimethylpyrazolyl)borate; RCMe3, Ph; EO, NPh; XCl, Br), 4a–c, have been synthesized by reaction of Tp′W(CR)X2, (R CMe3, XCl; RPh, XBr), 3a,b, with neutral alumina or aniline. Compounds 3a,b and 4a–c are air stable and thermally stable to ⪢ 100 °C in the solid state. When combined with 1 equivalent of AlCl3, Tp′W(CHPh)(NPh)Br, 4c, catalyzes the acyclic diene metathesis (ADMET) oligomerization of 1,9-decadiene, giving a mixture of 1,9,17-octadecatriene, 1,9,17,25-hexadodecatetraene and ethylene (≈30% conversion). The new alkylidene complex, 4a, is an efficient ring-opening metathesis polymerization (ROMP) catalyst in the presence of AlCl3, as a co-catalyst.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aa90109271056764808c1faeb3b8aa02 https://doi.org/10.1016/0304-5102(92)80161-9 Zobrazit plný text záznamu