상세 정보

underline
Metadata Downloads : dc(xml) or Excel
Cited 0 time in scopus ci

Title 

Quantitative catalyst-substrate association relationships between metathesis molybdenum or ruthenium carbene complexes and theri substrates

Authors 

K H KimT OkK LeeH S LeeKyu Tae ChangH IheeJ H Sohn

Publisher 

American Chemical Society

Issue Date 

2010

Citation 

Journal of American Chemical Society, vol. 132, no. 34, pp. 12027-12033

Keywords 

AllenesGeneral methodMetathesis mechanismsMetathesis reactionsMolecular identitiesPreference orderReaction initiationRu catalystsRuthenium carbene complexesSecond generation

Abstract 

Herein we present the long-sought quantitative catalyst-substrate association relationships based on experimentally measured quantitative association preferences of diverse metathesis Mo and Ru catalysts (Mo-1, Schrock Mo; Mo-2, Schrock-Hoveyda Mo; Ru-1, Grubbs first generation Ru; Ru-2, Grubbs second generation Ru; Ru-3:, Grubbs-Hoveyda first generation Ru; and Ru-4, Grubbs-Hoveyda second generation Ru) to their substrates (alkenes, alkynes and allenes), determined directly by a general method based on FRET principle. The determined substrate preferences are proved to be dependent on the molecular identity of the catalyst, exhibiting the preference order of alkyne > alkene > allene for Mo-1 and Mo-2, allene > alkene > alkyne for Ru-1 and Ru-3, and alkyne > allene > alkene for Ru-2 and Ru-4. The results enable us to probe metathesis mechanisms by answering issues in metathesis reactions including the controversial reaction initiation in enyne or allenyne metathesis

ISSN 

0002-7863

Link 

http://dx.doi.org/10.1021/ja104193s

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


There are no files associated with this item.
qrcode

FusionCharts.
DSpace Software Coptright(c) 2010 MIT and Hewleft-Packard  /  KRIBB-REPOSITORY ( Email:jakim@kribb.re.kr)