Functional Elastomers <i>via</i> Sequential Selective Diene Copolymerization/Hydrophosphorylation Catalysis

Ajellal, Noureddine; Guillevic, Erwan; Thomas, Christophe M.; Jackstell, Ralf; Beller, Matthias; Carpentier, Jean‐François

doi:10.1002/adsc.200700465

Cited by 10 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In particular, regioselective polymerization of 1,3‐dienes is more attractive since one specific carbon–carbon double bond could be remained (1,2‐ or 3,4‐selectivity) or newly formed (1,4‐selectivity) for construction of certain microstructure and subsequent desired functionalization. In recent years, the single‐site cationic rare earth metal catalysts such as molecular lanthanocene, half‐sandwich lanthanocene, and lanthanide complex bearing noncyclopentadienyl (non‐Cp) ligands, have shown extremely high activity and selectivity toward polymerization of 1,3‐dienes . Such selectivities are strongly influenced by the electronic and steric factors caused by ancillary ligand framework.…”

Section: Introductionmentioning

confidence: 99%

Mechanistic insights into regioselective polymerization of 1,3-Dienes catalyzed by a bipyridine-ligated iron complex: A DFT study

Luo

Kang

Zhou

et al. 2016

Int. J. Quantum Chem.

View full text Add to dashboard Cite

The regioselective polymerizations of isoprene and 3-methylpentadiene catalyzed by a cationic iron (II) complex bearing bipyridine ligand have been computationally studied. Having achieved an agreement between calculation and experiment, it is found that the open-shell unpaired 3d-electrons localize on Fe center rather than partially distribute on the redoxactive bipyridine ligand. The steric effect plays a more important role in controlling the regioselectivity in comparison with electronic factors. The deformation energy is mainly contributed by monomer and Fe-alkyl moieties rather than the bipyridine ligands themselves, although noncyclopentadienyl ancillary ligands are often deformed in most insertion transition states for selective polymerization of olefin.

show abstract

Section: Introductionmentioning

confidence: 99%

Mechanistic insights into regioselective polymerization of 1,3-Dienes catalyzed by a bipyridine-ligated iron complex: A DFT study

Luo

Kang

Zhou

et al. 2016

Int. J. Quantum Chem.

View full text Add to dashboard Cite

show abstract

“…The observed A Rh catalyst mediated anti-Markovnikov hydrophosphonylation of alkenes in a polymer to give a linear product (Scheme 16). A catalyst formed from Wilkinson's complex and four equiv of dpph was the most active; this ligand was suggested to be bidentate, but the active Rh species was not identified [26,27].…”

Section: Alkenesmentioning

confidence: 95%

Recent Advances in Metal-Catalyzed C–P Bond Formation

Glueck

2010

C-X Bond Formation

159

View full text Add to dashboard Cite

This chapter describes recent advances in metal-catalyzed C-P bond formation, which may be classified into two types of reactions. In hydrophosphination and related processes, P-H groups add across unsaturated C-X (X ¼ C, N, O) bonds. Phosphination of electrophiles typically results in substitution at sp 2 or sp 3 carbon; the P-H group is removed, often by a base. The scope of both nucleophilic and electrophilic partners in these processes is surveyed, and the proposed mechanisms and intermediates in the metal-catalyzed reactions are described.

show abstract

“…Among the ligands screened, dpph [1,6- . The optimized recipe can be applied readily to introduce phosphoryl groups to a polymer to produce functional elastomers starting with poly(isoprene-co-1,3,7-octatriene) copolymers [53].…”

Section: 'mentioning

confidence: 99%

Recent Progress in Transition Metal-Catalyzed Addition Reactions of H–P(O) Compounds with Unsaturated Carbon Linkages

Tanaka

2011

Hydrofunctionalization

View full text Add to dashboard Cite

Organophosphorus compounds are playing important roles in our daily life covering a wide range of applications from medicinal use to flame-retardant materials. Although classical synthetic methodologies are still used to synthesize them, the addition reactions of H-P(O) compounds such as H-phosphonates, H-phosphinates, and sec-phosphine oxides have been developed to partially replace the classical methods and are envisioned to be an indispensable tool in the near future. This chapter intends basically to provide recent progress in the field, but not a full scope on the reaction since the same subject was already written by the author in 2004.

show abstract

Functional Elastomers via Sequential Selective Diene Copolymerization/Hydrophosphorylation Catalysis

Cited by 10 publications

References 23 publications

Mechanistic insights into regioselective polymerization of 1,3-Dienes catalyzed by a bipyridine-ligated iron complex: A DFT study

Mechanistic insights into regioselective polymerization of 1,3-Dienes catalyzed by a bipyridine-ligated iron complex: A DFT study

Recent Advances in Metal-Catalyzed C–P Bond Formation

Recent Progress in Transition Metal-Catalyzed Addition Reactions of H–P(O) Compounds with Unsaturated Carbon Linkages

Contact Info

Product

Resources

About