A novel amidophosphine sulfur-supported magnesium complex, [Ph2P(S)NCH2CH2N−(CH2CH2)O]Mg(C4H9)(THF)] (2) enabling efficient ring-opening polymerization of rac-lactide (LA) and ϵ-caprolactone (CL) is disclosed. Achieved incredible selectivity for ROP of rac-lactide for the first time using a magnesium catalyst affording isoselective PLA with a Pi value of 0.77. The polymerization of rac-LA as well as ϵ-CL proceeded under mild reaction conditions in absence of any external initiator, to yield corresponding polyesters with a great control over the molecular weight. The kinetic studies reveal that both sulfur and magnesium centers simultaneously work together to drive high yield and selectivity. © 2022 Wiley-VCH GmbH.

Tarun Kanti Panda

Department of Chemistry

S. Sagar

K. Bano

A. Sarkar

K. Pal

Indian Institute of Technology Hyderabad (IITH) is a premier institute of science and technology established in 2008. IITH has been consistently ranked in the&nbsp;<a href="https://iith.ac.in/reports/" rel="noopener noreferrer">top 10 institutes</a>&nbsp;in India for Engineering&nbsp;<a href="https://www.nirfindia.org/2021/EngineeringRanking.html" rel="noopener noreferrer" target="_blank">according to NIRF</a>&nbsp;making it one of the most coveted schools for science and technology in the country.

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Journal	Data powered by TypesetEuropean Journal of Inorganic Chemistry
Publisher	Data powered by TypesetJohn Wiley and Sons Inc
ISSN	14341948