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Novel Synthesis of π‐Conjugated Molecules by Cross‐Metathesis of Vinylarene and Vinylferrocene with a Schrock Catalyst
Author(s) -
Yasuda Tomohiro,
Abe Jiro,
Yoshida Hirohisa,
Iyoda Tomokazu,
Kawai Tadashi
Publication year - 2002
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/1615-4169(200208)344:6/7<705::aid-adsc705>3.0.co;2-o
Subject(s) - chemistry , metathesis , conjugated system , catalysis , selectivity , molybdenum , salt metathesis reaction , molecule , combinatorial chemistry , organic chemistry , polymerization , polymer
The novel synthesis of π‐conjugated molecules by the cross‐metathesis reaction of vinylferrocene with a series of vinylarenes has been investigated with a molybdenum‐based Schrock catalyst (CHCMe 2 Ph)Mo(N‐2,6‐ i ‐Pr 2 C 6 H 3 )[OCMe(CF 3 ) 2 ] 2 . The cross‐metathesis product, a heterodimer, was readily obtained selectively, and only small amounts of the respective homodimers were formed. The origin of the high selectivity of heterodimer formation was elucidated through the metallacyclobutane intermediate mechanism, the observation of carbenes by in situ 1 H NMR, and the reaction products.