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Cyclooctane Metathesis Catalyzed by Silica‐Supported Tungsten Pentamethyl [(SiO)W(Me) 5 ]: Distribution of Macrocyclic Alkanes
Author(s) -
Riache Nassima,
Callens Emmanuel,
Samantaray Manoja K.,
Kharbatia Najeh M.,
Atiqullah Muhammad,
Basset JeanMarie
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201403704
Subject(s) - cyclooctane , metathesis , catalysis , chemistry , tungsten , alkane , ring (chemistry) , cycloheptane , distribution (mathematics) , organic chemistry , polymerization , mathematics , mathematical analysis , polymer
Metathesis of cyclic alkanes catalyzed by the new surface complex [(SiO)W(Me) 5 ] affords a wide distribution of cyclic and macrocyclic alkanes. The major products with the formula C n H 2 n are the result of either a ring contraction or ring expansion of cyclooctane leading to lower unsubstituted cyclic alkanes (5≤ n ≤7) and to an unprecedented distribution of unsubstituted macrocyclic alkanes (12≤ n ≤40), respectively, identified by GC/MS and by NMR spectroscopies.