Description

Me4-tert-Butyl Xphos-Aucl CAS NO 1140907-91-0 is a highly specialized, air-stable gold(I) complex catalyst, pre-activated for immediate use in cross-coupling and other transition metal-catalyzed reactions. This compound is valued for its superior catalytic efficiency and selectivity, significantly reducing reaction times and improving yields in complex synthetic pathways. It is an essential reagent for R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors, where precision and reliability in catalysis are paramount.

Application

• Pharmaceutical Intermediate Synthesis: Enabling key C-C and C-N bond-forming reactions in the production of active pharmaceutical ingredients (APIs).
• Agrochemical Research: Facilitating the synthesis of novel, complex molecules for crop protection agents and herbicides.
• Advanced Material Development: Catalyzing polymerization and functionalization reactions for specialty polymers and electronic materials.
• Academic & Industrial R&D: Serving as a robust and reliable catalyst for method development and discovery chemistry in laboratory settings.
• Scale-up Process Chemistry: Providing consistent performance for the transition from bench-scale to pilot plant and commercial manufacturing.

Basic Information

Product Name	Me4-tert-Butyl Xphos-Aucl
CAS No.	1140907-91-0
Molecular Formula	C32H48AuClP
Molecular Weight	705.09 g/mol
Synonyms	Chloro[1,1'-dimethyl-3,3'-(2,4,6-triisopropyl-1,3-phenylene)bis(2-tert-butyl-2,3-dihydro-1H-imidazol-2-ylidene)]gold(I); Me4-tBuXPhos Gold(I) Chloride; Chloro(1,1'-dimethyl-3,3'-(2,4,6-triisopropyl-1,3-phenylene)bis(2-tert-butyl-2,3-dihydro-1H-imidazol-2-ylidene))gold; Me4-tBuXPhosAuCl; Gold(I) complex with Me4-tBuXPhos ligand; NHC-Gold(I) Chloride Complex; tBuXPhos Gold Catalyst
EINECS	Contact for details

Quality Control

Every batch of Me4-tert-Butyl Xphos-Aucl is manufactured under strict quality management systems and undergoes comprehensive analytical characterization to ensure high purity and batch-to-batch consistency. Our quality assurance protocol includes NMR (1H, 13C, 31P), HPLC, and elemental analysis. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with our stringent specifications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., argon or nitrogen) at 2-8°C in a cool, dry place. The product is hygroscopic (moisture-sensitive) and easily oxidized; prolonged exposure to air and moisture should be avoided to maintain catalytic activity.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95%
Elemental Analysis (C, H)	Within theoretical ± 0.4%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.