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Title: Poly(ω-bromoalkylnorbornenes-co-norbornene) by ROMP-Hydrogenation: a Robust Support Amenable to Post-Polymerization Functionalization
Authors: García Loma, Rodrigo
Albéniz Jiménez, Ana Carmen
Issue Date: 2015
Publisher: Royal Society of Chemistry
Description: Producción Científica
Citation: RSC Advances, 2015,5, p. 70244-70254
Abstract: The ring opening metathesis copolymerization of norbornene and bromoalkylnorbornenes NB- (CH2)nBr (n = 1, 4) by Grubbs’ 2nd generation catalyst, followed by hydrogenation, gives insoluble saturated polynorbornenes (ROMPH-PNBs) that have pendant -bromoalkyl chains (4a, b). These materials can be functionalized by nucleophilic substitution of bromide to give a variety of substituted polymers (ROMPH-PNB-(CH2)nNu where Nu = CN, SPh, OOCMe, N3, SnR3. The stannylated polymers were tested in a Pd-catalyzed reaction, the Stille coupling. The azido polynorbornenes ROMPH-PNB-(CH2)nN3 easily undergo the click 1,3-dipolar cycloaddition with alkynes, which could be a useful strategy to anchor other functionalities of interest. The aliphatic nature of the ROMPH-PNB-(CH2)nBr backbone makes robust supports and the presence of the bromo substituent imparts versatility so they are good candidates to be used as a general starting material to anchor a group required for a specific synthetic purpose.
Keywords: Chemistry
ISSN: 2046-2069
Peer Review: SI
DOI: 10.1039/C5RA15187B
Sponsor: Ministerio de Economía, Industria y Competitividad (CTQ2013-48406-P)
Junta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA302U13)
Language: eng
Rights: info:eu-repo/semantics/openAccess
Appears in Collections:CINQUIMA - Artículos de revista
DEP63 - Artículos de revista

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