# Ruthenium Bis-Sulfonate Complexes: Synthesis and Application in Asymmetric Hydrogenation

## TL;DR

This paper reports the synthesis of new ruthenium complexes that improve the efficiency of asymmetric hydrogenation reactions.

## Contribution

The study introduces Ru(BINAP)(OMs)2 as a more effective catalyst compared to existing versions.

## Key findings

- Ru(L)(X)2 complexes were successfully synthesized and characterized.
- Ru(BINAP)(OMs)2 outperformed Ru(BINAP)(OAc)2 in catalytic asymmetric hydrogenation.
- Anion variation significantly impacts catalytic performance in these reactions.

## Abstract

A series of Ru­(L)­(X)2 complexes (L = bidentate
ligand;
X = OMs, OTs, OTf) was synthesized and characterized. Ru­(BINAP)­(OMs)2 showed improved catalytic performance over the established
Ru­(BINAP)­(OAc)2 catalyst, highlighting the impact of anion
variation on catalytic asymmetric hydrogenations.