Alkyne metathesis with in situ catalysts: W(CO)(6) and 4-chlorophenol are efficient in the formation of poly(para-phenyleneethynylene)s

Authors
Kloppenburg, L Bunz, UHF
Citation
L. Kloppenburg et Uhf. Bunz, Alkyne metathesis with in situ catalysts: W(CO)(6) and 4-chlorophenol are efficient in the formation of poly(para-phenyleneethynylene)s, J ORGMET CH, 606(1), 2000, pp. 13-15
Citations number
20
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
606
Issue
1
Year of publication
2000
Pages
13 - 15
Database
ISI
SICI code
0022-328X(20000714)606:1<13:AMWISC>2.0.ZU;2-B
Abstract
Treatment of several alkyl-substituted dipropynylated benzenes in the prese nce of tungsten hexacarbonyl and I-chlorophenol at 150 degrees C leads to t he formation of poly(pava-phenyleneethynylene)s (PPEs). The obtained PPEs a re of moderate molecular weights but form in good to excellent yields. Dihe xyl-, dinonyl-, and didodecyl-PPE have been made by this route. It is the f irst time that a tungsten-containing in situ catalyst system is reported to be;active for alkyne metathesis. (C) 2000 Elsevier Science S.A. All rights reserved.