1-(1,3-Benzothiazol-2-ylsulfanyl)propan-2-olate anion as a potential multifunctional ligand in aluminum complexes

Dariusz Basiak , Zbigniew Ochal , Iwona Justyniak , Wanda Ziemkowska

Abstract

1-(1,3-Benzothiazol-2-ylsulfanyl)propan-2-ol (C10H10NS2OH, LH) was used as a multifunctional ligand in reactions with aluminum trialkyls R3Al (R = iBu, Et, tBu). The reactions at 1:1 M ratio of reagents proceeded with formation of dimeric (R2AlL)2 (R = iBu, Et) complexes with a central Al2O2 ring, whereas in a presence of an excess of R3Al the compounds [(R2Al)(R3Al)L]2 (R = iBu, Et) with the central Al2O2 ring and R3Al molecules coordinated to nitrogen atoms were obtained. iBu3Al reacted with the LH yielding monomeric complex tBu2AlL independently on the molar ratio of reagents. In the compound, Al coordinates to the nitrogen atom to form intramolecular sp2-N donor bonding. The compounds [(iBu2Al)(iBu3Al)L]2 (1), (Et2AlL)2 (2) and tBu2AlL (3) were synthesized as pure compounds and characterized. Among four heteroatoms of the ligand, only the oxygen and nitrogen atoms can form bonds with aluminum atoms, whereas two sulfur atoms are non-coordinative. The compounds 1 and 2 are active as an initiator of the ε-caprolactone polymerization.
Author Dariusz Basiak (FC / DCOC)
Dariusz Basiak,,
- Department Of Catalysis And Organometallic Chemistry
, Zbigniew Ochal (FC / IBC / DDTB)
Zbigniew Ochal,,
- Department Of Drug Technology And Biotechnology
, Iwona Justyniak
Iwona Justyniak,,
-
, Wanda Ziemkowska (FC / DCOC)
Wanda Ziemkowska,,
- Department Of Catalysis And Organometallic Chemistry
Journal seriesPolyhedron, ISSN 0277-5387, (A 30 pkt)
Issue year2015
Vol102
Pages705-710
Publication size in sheets0.5
Keywords in EnglishAluminum; 1-(1,3-Benzothiazol-2-ylsulfanyl)propan-2-ol; Multifunctional ligands; Ring opening polymerization; Group 13 metals
DOIDOI:10.1016/j.poly.2015.10.048
URL http://www.sciencedirect.com/science/article/pii/S0277538715006385
Languageen angielski
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1-s2.0-S0277538715006385-main.pdf 696.67 KB
Score (nominal)30
ScoreMinisterial score = 25.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2015 = 2.108 (2) - 2015=1.973 (5)
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