# Sustainable and Scalable Redesign of PS-750‑M Synthesis While Retaining Micellar Catalytic Efficiency

## TL;DR

A new, eco-friendly method for making PS-750-M improves sustainability and efficiency without losing its catalytic performance.

## Contribution

A redesigned two-step synthesis of PS-750-M that is greener and scalable while maintaining catalytic efficiency.

## Key findings

- The new synthesis reduces environmental impact with E-factor and PMI dropping by over 90% and 85%.
- PS-750-M retains its catalytic efficiency in various reactions like C–C couplings and amide couplings.
- The process avoids hazardous reagents and enables solvent recovery and catalyst reuse.

## Abstract

An efficient, two-step synthetic route for PS-750-M has
been developed,
offering significant improvements in terms of sustainability, scalability,
and operational simplicity compared to the conventional four-step
process. The new methodology eliminates hazardous reagents, toxic
solvents, and chromatography, while enabling solvent recovery and
catalyst reuse. Quantitative green metrics reveal dramatic reductions
in environmental impact, with E-factor and process mass intensity
(PMI) decreasing by over 90% and 85%, respectively. Importantly, PS-750-M,
synthesized via this greener route, retains its micellar catalytic
efficiency tested on a variety of transformations, including palladium-catalyzed
C–C couplings, Buchwald–Hartwig aminations, biaryl ketone
formation, and rapid amide couplings. These results support the industrial
viability of the redesigned process and its alignment with the principles
of green chemistry, potentially facilitating the large-scale adoption
of this approach in pharmaceutical and fine chemical manufacturing.