- Chemical Name:Copper;dichloride;hydrate
- CAS No.:10125-13-0
- Molecular Formula:Cl2CuH4O2
- Molecular Weight:170.483
- Hs Code.:28273990
- Mol file:10125-13-0.mol
Synonyms:
Synonyms:
99% *data from raw suppliers
Copper(II) chloride dihydrate *data from reagent suppliers
The research focuses on the synthesis, redox properties, and coordination chemistry of three novel trifluoromethylated enaminones (L1H–L3H) with copper(II). The purpose of this study is to explore the potential of these ligands to form coordination complexes with copper(II) and to investigate their redox behavior, which could have applications in catalysis, magnetism, and materials science. The enaminone ligands were synthesized through a two-step process involving trifluoroacetylation of ethyl vinyl ether followed by an O–N exchange reaction with various amines. The copper(II) complexes were prepared by reacting the ligands with CuCl2·2H2O in methanol. The structures of the complexes were determined by single-crystal X-ray diffraction, revealing monomeric and dimeric forms. Electrochemical studies showed that the reduction processes of the complexes were different in dichloromethane and N,N-dimethylformamide, with copper(II) being directly reduced to copper(0) in the former and a copper(I) intermediate being more stable in the latter. The conclusions suggest that these enaminone ligands have potential for further development into heteromultinuclear complexes with interesting electro-magnetic properties.
The research focuses on the development of a catalytic enantioselective method for the synthesis of alkyne-substituted all-carbon quaternary stereogenic centers. The experiments involve the addition of alkynylaluminum reagents to variously substituted allylic phosphates, facilitated by NHC-Cu complexes derived from air-stable CuCl2·2H2O. The Al-based reagents are prepared by treating terminal alkynes with diisobutylaluminum hydride in the presence of Et3N. The reactions yield 1,4-enynes with high enantioselectivity (up to >99:1 enantiomeric ratio) and good yields (up to 98%). The study also demonstrates the utility of these enantiomerically enriched products in chemical synthesis through Au-catalyzed cyclizations. Analytical techniques such as 1H NMR, HPLC, and X-ray crystallography were used to characterize the products and assess the enantiomeric ratios and yields.