Glyoxal derivatives. II. Reaction of glyoxal with aromatic primary amines

Kliegman, Jonathan M.; Barnes, Robert K.

doi:10.1021/jo00834a062

Cited by 133 publications

(72 citation statements)

References 7 publications

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“…[16,17] The polymerizations were carried out in a 250 mL miniclave Büchi reactor. The reactor was charged with the PS macromonomer and purged with several vacuum/argon cycles.…”

Section: Copolymerization Of Ethylene and O-allyl Or O-undecenyl Polymentioning

confidence: 99%

Homo‐ and Copolymerization of ω‐Functional Polystyrene Macromonomers via Coordination Polymerization

Lahitte

Peruch

Meneghetti

et al. 2002

Macro Chemistry & Physics

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Macromonomers have been extensively used, as well defined building blocks for various macromolecular architectures via anionic, ROMP and free radical homo‐ or copolymerization processes. The purpose of the present work was to examine the homopolymerization and copolymerization of ω‐allyl, ω‐undecenyl and ω‐vinylbenzyl polystyrene (PS) macromonomers, in the presence of early or late transition metal catalysts. The influence of several parameters (type of catalytic system, nature of polymerizable end‐group and molar mass of the macromonomer) on the homopolymerization was first investigated. Whereas ω‐allyl or ω‐undecenyl PS macromonomers were not very reactive in homopolymerization whatever the catalyst, ω‐vinylbenzyl PS macromonomers gave interesting results with CpTiCl3/MAO and Cp*TiCl3/MAO. The copolymerization of these macromonomers with ethylene was also studied in the presence of the following palladium catalyst: [(ArNC(Me)C(Me)NAr)Pd(CH2)3(COOMe)]+BAr4′−(VERSIPOL™) (Ar = 2,6‐iPr2–C6H3 and Ar′ = 3,5‐(CF3)2C6H3). ω‐vinylbenzyl PS macromonomers could not be incorporated into poly(ethylene) chains. On the contrary, the incorporation of ω‐allyl PS macromonomers was achieved. Moreover, for macromonomers containing an alkyl spacer between the allylic unit and the PS chain, the incorporation rate, the copolymerization yield and the molar masses of the copolymers were increased, giving access to a new type of graft copolymer structure. Synthesis of polystyrene macromonomers.magnified imageSynthesis of polystyrene macromonomers.

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“…[16,17] The polymerizations were carried out in a 250 mL miniclave Büchi reactor. The reactor was charged with the PS macromonomer and purged with several vacuum/argon cycles.…”

Section: Copolymerization Of Ethylene and O-allyl Or O-undecenyl Polymentioning

confidence: 99%

Homo‐ and Copolymerization of ω‐Functional Polystyrene Macromonomers via Coordination Polymerization

Lahitte

Peruch

Meneghetti

et al. 2002

Macro Chemistry & Physics

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“…[g] (mL/g) THF n branch / 1 000 C e) 15 molar mass values is observed, which is probably due the stronger coordination of BF 4 -, an effect which has been extensively studied. [19,20] Lowering catalyst concentration and olefin pressure leads as usual [10] to lower poly(olefin) yields, except at higher concentration and pressure, where this effect seems less clearcut (Tab.…”

Section: Influence Of the Reaction Conditions On The Activitymentioning

confidence: 99%

Structural investigation of poly(olefin)s and copolymers of ethylene with polar monomers prepared under various reaction conditions in the presence of palladium catalysts

Meneghetti

Kress

Lutz³

2000

Macromol. Chem. Phys.

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“…Tin tetraacetate [6] and the ligands [1,2,[7][8][9] were prepared by the reported methods. Estimation o f tin and acetate were carried out as described earlier [6].…”

Section: Methodsmentioning

confidence: 99%

Tin (IV ) and Organotin(IV) Coordination Complexes with Nitrogen and Oxygen (Sulfur) Containing Ligands

Sakuntala

VASANTA

1985

Zeitschrift Für Naturforschung B

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Reactions of tin tetraacetate with various bifunctional tetradentate Schiff bases have been carried out in refluxing toluene (with the azeotropic removal of the liberated acetic acid) in 1:1 and 1:2 molar ratios. But only the diacetate derivatives of tin have been isolated as stable monomeric compounds. Benzoxazine, a potentially bifunctional tetradentate ligand, is found to undergo a rearrangement when reacted with tin tetraacetate as well as with organotin compounds. All the new compounds are characterised by NMR and IR spectral data.

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Glyoxal derivatives. II. Reaction of glyoxal with aromatic primary amines

Cited by 133 publications

References 7 publications

Homo‐ and Copolymerization of ω‐Functional Polystyrene Macromonomers via Coordination Polymerization

Homo‐ and Copolymerization of ω‐Functional Polystyrene Macromonomers via Coordination Polymerization

Structural investigation of poly(olefin)s and copolymers of ethylene with polar monomers prepared under various reaction conditions in the presence of palladium catalysts

Tin (IV ) and Organotin(IV) Coordination Complexes with Nitrogen and Oxygen (Sulfur) Containing Ligands

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