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Living ring-opening metathesis polymerization of bicyclo[3.2.0]heptene catalyzed by a ruthenium alkylidene complex

Wu, Zhe and Benedicto, Alto D. and Grubbs, Robert H. (1993) Living ring-opening metathesis polymerization of bicyclo[3.2.0]heptene catalyzed by a ruthenium alkylidene complex. Macromolecules, 26 (18). pp. 4975-4977. ISSN 0024-9297. https://resolver.caltech.edu/CaltechAUTHORS:20180521-102658357

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Abstract

Living polymerizations using ring-opening metathesis catalysts (ROMP) have allowed the synthesis of polymers with controlled structure and properties. In the past few years, efforts have been focused on developing novel transition-metal alkylidene complexes that catalyze this reaction and provide either access to new product or easier synthesis. All of the catalysts developed to date are high oxidation state organometallic complexes, which exhibit limited tolerance to polar functional groups, and only catalyze the living polymerization of norbornene and its derivatives. Recently, we have synthesized a ruthenium alkylidene complex that exhibits exceptional tolerance to a variety of polar functional groups and also catalyzes the living ROMP of norbornene. Because we were interested in elucidating the details of this living polymerization, we investigated the ROMP of highly reactive monomer bicyclo[3.2.0] heptene (I), catalyzed by the late-transitionmetal complex (PPh_3)_2(Cl)_2Ru(=CHCH=CPh_2) (II; eq 1). We hope that an investigation of this system will provide us with a better understanding of the mechanism of polymerization catalyzed by late-transition-metal alkylidene complexes and eventually allow us to control molecular weight in the preparation of functionalized polymers with potential uses in biological applications.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/ma00070a039DOIArticle
ORCID:
AuthorORCID
Grubbs, Robert H.0000-0002-0057-7817
Additional Information:© 1993 American Chemical Society. Received March 15, 1993; Revised Manuscript Received June 29, 1993. We gratefully acknowledge financial support from the National Science Foundation. We especially thank Dr. T. R. Lee for helpful discussions and S. T. Nguyen for providing the catalyst.
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NSFUNSPECIFIED
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Other Numbering System NameOther Numbering System ID
Caltech Arnold and Mabel Laboratories of Chemical Synthesis8757
Issue or Number:18
Record Number:CaltechAUTHORS:20180521-102658357
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180521-102658357
Official Citation:Living ring-opening metathesis polymerization of bicyclo[3.2.0]heptene catalyzed by a ruthenium alkylidene complex. Zhe Wu, Alto D. Benedicto, and Robert H. Grubbs. Macromolecules 1993 26 (18), 4975-4977. DOI: 10.1021/ma00070a039
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86495
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 May 2018 17:38
Last Modified:03 Oct 2019 19:44

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