5. Hydrosilylation 3862 5.1. Alkene Hydrosilylation 3863 5.2. Ketone Hydrosilylation 3865 6. Alkene Hydrogenation 3866 7. Aldol-, Mannich-, and Michael-Type Reactions 3867 7.1. Enantioand Diastereoselective Conversions 3867 7.2. Remarks on Stereoselective Induction 3869 8. Miscellaneous Conversions 3869 9. Analogies between Yb2+ and Ca2+ Chemistry 3871 10. Conclusions and Perspectives 3872 11. References 3873

From limestone to catalysis: application of calcium compounds as homogeneous catalysts.

Structurally Diverse pi-Cyclopentadienyl Complexes of the Main Group Elements.

Despite the routine employment of Grignard reagents and Hauser bases as stoichiometric carbanion reagents in organic and inorganic synthesis, a defined reaction chemistry encompassing the heavier e...

https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.2009.0558

Heterofunctionalization catalysis with organometallic complexes of calcium, strontium and barium

A metalorganic complex of the formula MAYX, wherein M is a y-valent metal; A is a monodentate or multidentate organic ligand coordinated to M which allows complexing of MAy with X; y is an integer having a value of 2, 3 or 4; each of the A ligands may be the same or different; and X is a monodentate or multidentate ligand coordinated to M and containing one or more atoms independently selected from the group consisting of atoms of the elements C, N, H, S, O and F. The metal M may be selected from the group consisting of Cu, Ba, Sr, La, Nd, Ce, Pr, Sm, Eu, Th, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Bi, Tl, Y, Pb, Ni, Pd, Pt, Al, Ga, In, Ag, Au, Co, Rh, Ir, Fe, Ru, Sn, Li, Na, K, Rb, Cs, Ca, Mg, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W. A may be selected from the group consisting of β-diketonates and their sulfur and nitrogen analogs, β-ketoesters and their sulfur and nitrogen analogs, cyclopentadienyls, alkyls, perfluoroalkyls, alkoxides, perfluoroalkoxides, and Schiff bases. X may for example comprise a ligand such as tetraglyme, tetrahydrofuran, bipyridine, crown ether, or thioether.

Metal complex source reagents for chemical vapor deposition

Synthesis, properties, and reactivity of alkaline earth metal bis[bis(trialkylsilyl)amides]

Synthesis of a monopentamethylcyclopentadienyl halide complex of calcium. The x-ray crystal structure of [(Me5C5)Ca(.mu.-I)(THF)2]2

Solution synthesis of calcium, strontium and barium metallocenes

Reduction of heavy alkaline earth (Ca, Sr, Ba) di-iodides with metallic potassium in tetrahydrofuran precipitates finely divided metal powders which react rapidly with triphenylmethyl chloride, Me5C5H, fluorinated acetylacetones, and phenols to generate the corresponding alkyl metal halides, metallocenes, acetylacetonates, and aryl oxides.

Michael J. McCormick

Papers

Synthesis of a monopentamethylcyclopentadienyl halide complex of calcium. The x-ray crystal structure of [(Me5C5)Ca(.mu.-I)(THF)2]2

Solution synthesis of calcium, strontium and barium metallocenes

Preparation of activated calcium, strontium, and barium powders by reduction of alkaline earth di-iodides