Title:
RUTHENIUM-BASED METATHESIS CATALYSTS, PRECURSORS FOR THEIR PREPARATION AND THEIR USE
Document Type and Number:
Japanese Patent JP2018123164
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide ruthenium-based metathesis catalysts of the Grubbs-Hoveyda type.SOLUTION: The new 2-aryloxy-substituted ruthenium catalysts described herein reveal rapid initiation behavior. Further, the corresponding styrene-based precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from styrene-based precursors which can be prepared in a cost- effective manner. The new Grubbs-Hoveyda type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are necessary to convert a wide range of substrates including more complex and critical substrates via metathesis reactions at low to moderate temperatures in high yields within short reaction times.SELECTED DRAWING: Figure 3
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Inventors:
HERBERT PLENIO
PAVLO KOS
ROMAN SAVKA
PAVLO KOS
ROMAN SAVKA
Application Number:
JP2018093789A
Publication Date:
August 09, 2018
Filing Date:
May 15, 2018
Export Citation:
Assignee:
UMICORE AG & CO KG
International Classes:
C07C43/285; B01J31/22; C07C43/29; C07C205/38; C07C217/90
Domestic Patent References:
| JP2009534369A | 2009-09-24 | |||
| JPS62201916A | 1987-09-05 |
Foreign References:
| CN102351172A | 2012-02-15 |
Other References:
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JUNG, JONG-WHA, ET AL., TETRAHEDRON, vol. 66, no. 34, JPN5015011665, 21 August 2010 (2010-08-21), NL, pages 6826 - 6831, ISSN: 0004101641
J. COMB. CHEM., vol. 11(1), JPN6019001549, 2009, pages 47 - 71, ISSN: 0004101642
SEO, SEUNG-YONG, ET AL., JOURNAL OF ORGANIC CHEMISTRY [ONLINE], vol. 72, no. 2, JPN5015011666, 14 December 2006 (2006-12-14), US, pages 666 - 668, ISSN: 0004101643
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JOURNAL OF GENERAL CHEMISTRY OF THE USSR, vol. 30(3), JPN6019001550, 1960, pages 947 - 948, ISSN: 0004101645
FILE REGISTRY ON STN, RN 1286221-42-8, ENTERED STN: 26 APR 2011, JPN7019000162, ISSN: 0004101646
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe