Catalytic cyclopropanation of polybutadienes

Urbano Baena, Juan; Korthals, Brigitte; Díaz Requejo, María Mar; Pérez Romero, Pedro José; Mecking, Stefan

doi:10.1002/pola.24231

Author

Urbano Baena, Juan ; Korthals, Brigitte; Díaz Requejo, María Mar ; Pérez Romero, Pedro José ; Mecking, Stefan
Publication Date

2010
Publisher

Wiley
Citation

Urbano, J., Korthals, B., Díaz Requejo, M.M., Pérez Romero, P.J.: "Catalytic cyclopropanation of polybutadienes". Journal of Polymer Science Part A: Polymer Chemistry. Vol. 48, n. 20, págs. 4439–4444, (2010). DOI: 10.1002/pola.24231
Abstract

Catalytic cyclopropanation of commercial 1,2- or 1,4- cis -polybutadiene, respectively, with ethyl diazoacetate catalyzed by [Tp Br3 Cu(NCMe)] (Tp Br3 ¼ hydrotris(3,4,5-tribromo-1-pyrazo- lyl)borate) at room temperature afforded high molecular weight ( M n > 10 5 mol 1 ) side-chain or main-chain, respectively, carbox- yethyl cyclopropyl-substituted polymers with variable and con- trolled degrees of functionalization. Complete functionalization of 1,4- cis -polybutadiene afforded poly[ethylene-alt-(3-ethoxycar- bonyl-cyclopropene)]. Catalytic hydrogenation of residual dou- ble bonds of partially cyclopropanated polybutadienes provided access to the corresponding saturated polyolefins. Thermal properties are reported.
URI

http://hdl.handle.net/10272/10964

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Catalytic cyclopropanation of polybutadienes

Author

Urbano Baena, Juan UHU Authority

; Korthals, Brigitte; Díaz Requejo, María Mar UHU Authority

; Pérez Romero, Pedro José UHU Authority

; Mecking, Stefan

Publication Date

2010

Publisher

Wiley

Citation

Urbano, J., Korthals, B., Díaz Requejo, M.M., Pérez Romero, P.J.: "Catalytic cyclopropanation of polybutadienes". Journal of Polymer Science Part A: Polymer Chemistry. Vol. 48, n. 20, págs. 4439–4444, (2010). DOI: 10.1002/pola.24231

Abstract

Catalytic cyclopropanation of commercial 1,2- or 1,4- cis -polybutadiene, respectively, with ethyl diazoacetate catalyzed by [Tp Br3 Cu(NCMe)] (Tp Br3 ¼ hydrotris(3,4,5-tribromo-1-pyrazo- lyl)borate) at room temperature afforded high molecular weight ( M n > 10 5 mol 1 ) side-chain or main-chain, respectively, carbox- yethyl cyclopropyl-substituted polymers with variable and con- trolled degrees of functionalization. Complete functionalization of 1,4- cis -polybutadiene afforded poly[ethylene-alt-(3-ethoxycar- bonyl-cyclopropene)]. Catalytic hydrogenation of residual dou- ble bonds of partially cyclopropanated polybutadienes provided access to the corresponding saturated polyolefins. Thermal properties are reported.

URI

http://hdl.handle.net/10272/10964

Fichero	Tamaño	Formato	Ver	Description
Catalytic_Cyclopropanation.pdf	463.6Kb	PDF	View/Open	versión post-print

Fichero	Tamaño	Formato	Ver	Description
Catalytic_Cyclopropanation.pdf	463.6Kb	PDF	View/Open	versión post-print

This item appears in the following Collection(s)

CIQSO - Artículos