RT info:eu-repo/semantics/article
T1 Poly(ω-bromoalkylnorbornenes-co-norbornene) by ROMP-Hydrogenation: a Robust Support Amenable to Post-Polymerization Functionalization
A1 García Loma, Rodrigo
A1 Albéniz Jiménez, Ana Carmen
K1 Chemistry
K1 Polymerization
AB 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 syntheticpurpose.
PB Royal Society of Chemistry
SN 2046-2069
YR 2015
FD 2015
LK http://uvadoc.uva.es/handle/10324/21800
UL http://uvadoc.uva.es/handle/10324/21800
LA eng
NO RSC Advances, 2015,5, p. 70244-70254
NO Producción Científica
DS UVaDOC
RD 27-abr-2024