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Access to Highly Stereodefined 1,4- cis -Polydienes by a [Ni/Mg] Orthogonal Tandem Catalytic Polymerization.
- Source :
-
Journal of the American Chemical Society [J Am Chem Soc] 2021 Aug 25; Vol. 143 (33), pp. 13401-13407. Date of Electronic Publication: 2021 Aug 11. - Publication Year :
- 2021
-
Abstract
- A [Ni/Mg]-catalyzed orthogonal tandem polymerization has been developed starting from enol phosphates. Initial investigations conducted on branched 1,3-dienes as monomers enabled identification of a Mg-initiated polymerization process leading to 1,4- cis -polydienes. When aryl enol phosphates are used as monomers, the [Ni/Mg]-catalyzed tandem polymerization affords 1,4- cis -polydienes with selectivities up to 99%. Elastomeric or crystalline materials were obtained by simple structural modifications of the monomeric unit. This tandem approach appears as a straightforward and efficient way to enforce diversity and selectivity in diene polymerization while retaining a fair degree of control, just as observed for stepwise systems that are accessible through established time- and manpower-consuming synthetic procedures.
Details
- Language :
- English
- ISSN :
- 1520-5126
- Volume :
- 143
- Issue :
- 33
- Database :
- MEDLINE
- Journal :
- Journal of the American Chemical Society
- Publication Type :
- Academic Journal
- Accession number :
- 34379408
- Full Text :
- https://doi.org/10.1021/jacs.1c06553