TY - JOUR
T1 - Rhenium(VII) oxide/aluminum oxide
T2 - More experimental evidence for an oxametallacyclobutane intermediate and a pseudo-Wittig initiation step in olefin metathesis
AU - Salameh, Alain
AU - Copéret, Christophe
AU - Basset, Jean-Marie Maurice
AU - Böhm, Volker P.W.
AU - Róper, Michael
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Reactivity studies of the rhenium(VII) oxide/aluminum oxide olefin metathesis catalyst with various olefins show that initiation does not require an olefin with an allylic C-H bond, and therefore probably takes place via a pseudo-Wittig reaction. While it does not react with ethene in the absence of propene, Re2O7/Al2O3 catalyses the self-metathesis of Z-stilbene and its cross-metathesis with ethene.Additionally, reaction of Re2O7/Al2O3 with Z-2-butene followed by 13C di-labelled ethene shows that it contains only 2% of active sites.
AB - Reactivity studies of the rhenium(VII) oxide/aluminum oxide olefin metathesis catalyst with various olefins show that initiation does not require an olefin with an allylic C-H bond, and therefore probably takes place via a pseudo-Wittig reaction. While it does not react with ethene in the absence of propene, Re2O7/Al2O3 catalyses the self-metathesis of Z-stilbene and its cross-metathesis with ethene.Additionally, reaction of Re2O7/Al2O3 with Z-2-butene followed by 13C di-labelled ethene shows that it contains only 2% of active sites.
KW - Initiation
KW - Olefin metathesis catalyst
KW - Pseudo-Wittig reaction
KW - Rhenium(VII) oxide/aluminum oxide
UR - http://www.scopus.com/inward/record.url?scp=33846686834&partnerID=8YFLogxK
U2 - 10.1002/adsc.200600440
DO - 10.1002/adsc.200600440
M3 - Article
AN - SCOPUS:33846686834
VL - 349
SP - 238
EP - 242
JO - Advanced Synthesis and Catalysis
JF - Advanced Synthesis and Catalysis
SN - 1615-4150
IS - 1-2
ER -