Journal
JACS AU
Volume 1, Issue 9, Pages 1506-1513Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacsau.1c00236
Keywords
micellar catalysis; chemistry in water; acid chloride; nanoparticle; sustainability
Categories
Funding
- National Science Foundation [CHE-2044778]
- Takeda Pharmaceuticals
Ask authors/readers for more resources
A sustainable micellar technology is used to design and synthesize ligand-free oxidizable ultrasmall Pd(0) nanoparticles with the shielding effect of nanomicelles, allowing for their catalytic exploration in water-sensitive couplings. The characterization of these nanoparticles reveals their stability, prevention of aggregation, and interactions with other compounds, showcasing the potential applications of this approach in scalable reactions.
Under the shielding effect of nanomicelles, a sustainable micellar technology for the design and convenient synthesis of ligand-free oxidizable ultrasmall Pd(0) nanoparticles (NPs) and their subsequent catalytic exploration for couplings of water-sensitive acid chlorides in water is reported. A proline-derived amphiphile, PS-750-M, plays a crucial role in stabilizing these NPs, preventing their aggregation and oxidation state changes. These NPs were characterized using C-13 nuclear magnetic resonance (NMR), infrared (IR), and surface-enhanced Raman scattering (SERS) spectroscopy to evaluate the carbonyl interactions of PS-750-M with Pd. High-resolution transmission electron microscopy (HRTEM) and energy-dispersive X-ray spectroscopy (EDX) studies were performed to reveal the morphology, particle size distribution, and chemical composition, whereas X-ray photoelectron spectroscopy (XPS) measurements unveiled the oxidation state of the metal. In the cross-couplings of water-sensitive acid chlorides with boronic acids, the micelle's shielding effect and boronic acids plays a vital role in preventing unwanted side reactions, including the hydrolysis of acid chlorides under basic pH. This approach is scalable and the applications are showcased in multigram scale reactions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available