Synthesis and Investigation of Properties of Vinylcontaining Silyllactams and Their Copolymers

Lekishvili, N.; Khananashvili, L. M.; Akhobadze, D. Sh.; Rubinstein, G. M.; Gogobershvili, K. M.

doi:10.1080/00914039208034816

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“…Vinyl containing silyllactams have been copolymerized. It was shown that the introduction of silicon‐containing monomers into the main chain of polystyrols and polyacrylates causes improved thermostability and processability of the polymers . The acylation of N ‐trimethylsilyl lactams is important for the synthesis of polymers .…”

Section: Introductionmentioning

confidence: 99%

Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO₂ and Phenylisocyanate

Herbig

Böhme

Kroke

2019

Zeitschrift anorg allge chemie

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Lactamomethylsilanes of γ-butyrolactam, δ-valerolactam, ε-caprolactam, and 1-isoindolinone (phthalimidine) with up to three methyl moieties were synthesized according to the chemical formula Me x SiLac (4-x) (x = 0, 1, 2, and 3). Using the lactams as starting materials four synthetic routes were tested: salt elimination, transsilylation, transamination, and metallation of the lactames followed by reaction 377 with methylchlorosilanes. All products were analyzed by NMR ( 1 H, 13 C and 29 Si) and RAMAN spectroscopy. Selected solid products were crystallized and the molecular structure was determined by single-crystal X-ray diffraction. The reactivity of the lactamomethylsilanes towards phenylisocyanate and CO 2 was studied.Si-O bond but less reactive than a Si-Cl bond. The Si-N bond is prone towards hydrolysis and alkoholysis. Additionally, some substances containing Si-N bonds react with heteroallenes like CO 2 and isocyanates via insertion reactions yielding useful products such as ureas, carbamates, and polysiloxanes, among others. [23][24][25][26] Therefore, in the presented study we have synthesized lactamomethylsilanes of the type Me x SiLac (4-x) (x = 0, 1, 2, and 3) [Lac = γ-butyrolactam, δ-valerolactam, εcaprolactam, and 1-isoindolinone (phthalimidine)] in order to investigate their structures and reactivities.

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Section: Introductionmentioning

confidence: 99%

Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO₂ and Phenylisocyanate

Herbig

Böhme

Kroke

2019

Zeitschrift anorg allge chemie

View full text Add to dashboard Cite

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Synthesis and Investigation of Properties of Vinylcontaining Silyllactams and Their Copolymers

Cited by 1 publication

References 1 publication

Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO₂ and Phenylisocyanate

Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO₂ and Phenylisocyanate

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Synthesis and Investigation of Properties of Vinylcontaining Silyllactams and Their Copolymers

Cited by 1 publication

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Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO2 and Phenylisocyanate

Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO2 and Phenylisocyanate

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Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO₂ and Phenylisocyanate

Lactamomethylsilanes – Synthesis, Structures, and Reactivity towards CO₂ and Phenylisocyanate