A convenient synthesis of N,N',N''-trisubstituted diethylenetriamines

Agaeva, M. U.; Mankaev, Badma N.; Filippenko, Vladislav I.; Serova, Valeriia A.; Egorov, Mikhail P.; Karlov, Sergey S.

doi:10.1016/j.mencom.2023.02.003

Cited by 2 publications

(2 citation statements)

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“…At first, diethylenetriamine pro-ligands 1a – 8a were synthesized by a reported method . New aluminum complexes 5 – 8 were synthesized with 58–74% yields by reacting a solution of diethylenetriamine pro-ligands 5a – 8a with a commercially available 2 M solution of AlMe 3 in toluene (Scheme ).…”

Section: Resultsmentioning

confidence: 99%

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Diamidoamine Aluminum Complex as Effective Initiator for Random Copolymerization of Substituted Carbonate with L-Lactide

Agaeva,

Filippenko,

Mankaev

et al. 2024

Organometallics

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Designing a catalyst for random copolymerization by ring-opening polymerization (ROP) is an actual task. In the present work, we report the synthesis of aluminum complexes (R′ = Et, R′′ = Ph (5); R′ = Bn, R′′ = Ph (6); R′ = t-Bu, R′′ = Ph (7); R′ = R′′ = Ph (8)] based on diamidoamine pro-ligands. The reactivity of complexes in the ROP of ε-caprolactone (ε-CL) was studied. The highest activity was shown by complexes 5 and 8, containing phenyl groups at the terminal nitrogen atoms of the ligand in the ROP of ε-CL. Also, complex 5 was an effective initiator of copolymerization of 2-(benzyloxycarbonyl)-2-methyltrimethylene carbonate (TMC R ) and L-lactide (L-LA) which led to the formation of a random copolymer.

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Section: Resultsmentioning

confidence: 99%

“…L -LA was recrystallized from toluene and sublimed in vacuo , and ε-CL was distilled over CaH 2 . Pro-ligands ( 1a - 8a ) and 2-(benzyloxycarbonyl)-2-methyltrimethylene carbonate were synthesized according to the literature procedures.…”

Section: Methodsmentioning

confidence: 99%