Copper, bis carbonyl

C52H76Cu2Fc2N402P2, Copper, Bis carbonyl-(cyclopentadienyl)irondi(/r-cyano) (tricyclohexylphosphine)-, ... 

CiooH94Cu2Fe2N402P4, Copper, bis carbonyl-(cyclopentadienyl)irondi(/4-cyano)bis-(tri(para-tolyOphosphine)-, 34 176... 

Fe2Cu2N402P4C8gHi42, Copper, bis carbonyl-(cyclopentadienyl)irondi(/i-cyano)bis(tri-cyclohexylphosphine)-, 34 175 Fe2Cu2N402P4CiooH94, Copper, bis carbonyl-(cyclopentadienyl)irondi(/4-cyano)-bis(tri(para-tolyl)phosphine)-, 34 176 Fe2Cu2Ng02C24H22, Copper,... 

Bis carbonyl(cyclopeQtadienyl)irondi(/i-cyano)(tricyclohexylphosphine)-, 34 174 N4Cu2Fe202P4C7oHno- Copper, bis carbonyl-(cyclopentadieny l)irondi(/i-cyano)-1,3-bis-(dicyclohexylphosphino)propane-, 34 177 N4Cu2Fe202P4CggHi42, Copper,... 

NgCgK4Mo-2H20, Molybdate(IV), octacyano-, potassium, dihydrate, 34 157 NgCgK4W-2H20, Tungstate(IV), octacyano-, potassium, dihydrate, 34 157 NgCu2Fe202C24H22, Copper, bis carbonyl-... 

C. BIS CARBONYL(CYCLOPENTADIENYL)IRONDI( i-CYANO) (TRICYCLOHEXYLPHOSPHINE)COPPER), CpFe(CO)( i-CN)2Cu(PCY3) 2... 

Catalytic enantioselective versions of the inverse electron demand cycloaddition have also been reported. For example, the C-(diisopropylamino)carbonyl A -phenyl nitrone reacted with 7-substituted allylic alcohols in the presence of diethylzinc, iodine, pyridine A -oxide, and a catalytic amount of enantiopure DIPT to afford 3,5-m-disubstituted isoxazolidines with high enantioselectivity (Scheme 124) <2002CL302>. Enantioselective cycloaddition of nitrones to enol ethers was achieved in the presence of chiral binaphthol-aluminium and chiral copper-bis(oxazoline) catalysts <1999JA3845, 1999CC811, 1999JOC2353, 2000JOC9080>. 

CuBN4OC[6H2J, Copper(I), carbonyl[tris(3,5-dimethylpyrazolato)-hydroborato]-, 21 109 CuBN,0C )H 2, Copper(l), carbonyl-tetrakis(pyrazolato)borato]-, 21 110 CuF12N4P2C24H28, Copper(II), (2,9-dimethyl-3,10-diphenyl-1,4,8,11-tetraazacyclotetra-deca-1,3,8,10-tetraene)-, bis[hexafluorophosphate(l -)], 22 10 Cul, Copper iodide, 22 101 CuN]07SC, H 4, Copper(Il), (1,10-phenanthro-line)[serinato(l -)]-, sulfate, 21 115... 

The observed sense of asymmetric induction is consistent with a square planar copper(II)-glyoxylate complex with approach of the ene from the face opposite to the nearby tert-butyl substituent. Copper bis-oxazoline catalysts have also been used in the intramolecular carbonyl ene reaction. For instance, unsaturated a-ketoester (7.200) undergoes ene cyclisation to give the product (7.201) with high ee in the presence of the catalyst derived from BOX-ligand (7.34) and Cu(OTf)2. ° ... 

In 2008, Bhanage and coworkers [50a] reported on a copper-catalyzed carbonylative Sonogashira reaction of aryl iodides. In this procedure, copper bis(2,2,6,6-tetramethyl-3,5-heptanedionate) [Cu(TMHD)2 was used as the catalyst for this transformation and NEtj as base. Alkynones were produced in good yields. Recently, Xia and coworkers [50b] described a general and efficient copper-catalyzed... 

Johnson J. S., Evans D. A. Chiral Bis(Oxazoline) Copper(II) Complexes Versatile Catalysts for Enantioselective Cycloaddition, Aldol, Michael, and Carbonyl Ene Reactions Acc. Chem. Res. 2000 33 325-335... 

The use of chiral bis(oxazoline) copper catalysts has also been often reported as an efficient and economic way to perform asymmetric hetero-Diels-Alder reactions of carbonyl compounds and imines with conjugated dienes [81], with the main focus on the application of this methodology towards the preparation of biologically valuable synthons [82]. Only some representative examples are listed below. For example, the copper complex 54 (Scheme 26) has been successfully involved in the catalytic hetero Diels-Alder reaction of a substituted cyclohexadiene with ethyl glyoxylate [83], a key step in the total synthesis of (i )-dihydroactinidiolide (Scheme 30). 

Carbonyl- and imino-ene reactions were also catalyzed by the bis(oxazo-line)-copper complexes of ligands 6a, 6b and 11b supported on zeoHte Y (Scheme 13) [69]. The enantioselectivities obtained with the supported catalysts were similar or better than those obtained in homogeneous phase with the same ligands. Some relevant examples are shown in Table 12. 

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