TY - JOUR
T1 - Latent sulfur chelated ruthenium catalysts
T2 - Steric acceleration effects on olefin metathesis
AU - Kost, Tamar
AU - Sigalov, Mark
AU - Goldberg, Israel
AU - Ben-Asuly, Amos
AU - Lemcoff, N. Gabriel
N1 - Funding Information:
Partial funding of this work by the German-Israeli Foundation is gratefully acknowledged.
PY - 2008/6/1
Y1 - 2008/6/1
N2 - A series of sulfur chelated dormant ruthenium olefin metathesis catalysts is presented. The catalysts prepared were shown to possess the uncommon cis-dichloro arrangement and were mostly inactive at room temperature. By systematically modifying the size of the substituent groups at the chelating sulfur atom, catalyst activity at different temperatures was significantly affected; more bulky substituents fomented activity at lower temperatures. The catalysts were also shown to be stable in solution and retained their catalytic activity even after being exposed to air for two weeks.
AB - A series of sulfur chelated dormant ruthenium olefin metathesis catalysts is presented. The catalysts prepared were shown to possess the uncommon cis-dichloro arrangement and were mostly inactive at room temperature. By systematically modifying the size of the substituent groups at the chelating sulfur atom, catalyst activity at different temperatures was significantly affected; more bulky substituents fomented activity at lower temperatures. The catalysts were also shown to be stable in solution and retained their catalytic activity even after being exposed to air for two weeks.
KW - Latent catalysts
KW - Ring closing metathesis
KW - Ruthenium
KW - Sulfur chelation
UR - http://www.scopus.com/inward/record.url?scp=43449116061&partnerID=8YFLogxK
U2 - 10.1016/j.jorganchem.2008.03.028
DO - 10.1016/j.jorganchem.2008.03.028
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AN - SCOPUS:43449116061
SN - 0022-328X
VL - 693
SP - 2200
EP - 2203
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 12
ER -