Preparation, Reactions, and Complexes

Kuchin and T. O. Yakovleva, Issled. Obi. Khim. Vysokomol. Soedin. Neftekhim., 1977, 8 Chem. Abstr., 1980, 93, 26 483. 

The addition of trialkylalanes to alkenes is also catalysed by dicyclopentadienyl-zirconium dichloride to afford hydroalumination products that undergo protonolysis to yield alkanes. Thus, reaction of oct-l-ene with Bu gAl with a catalytic quantity of cpaZrCl2 at 0 °C gives n-octane in 97 % yield. Reduction of alkenes containing hydroxyl, phenylthiolato, and bromo functions can also be reduced in the same way.  

With cyclo-octadienylnickel(0) the polynuclear complexes (14) and (15) are formed, whereas with nickel(n) bromide, octaphenylcyclo-octatetraene is obtained in both cases.  

Perkampus, Synth. React. Inorg. Met.-Org. Chem., 

The synthesis, stability, and properties of phenylaluminium tetrahydroborates have been studied, PhgAl dissolves readily in Al(BH4)s to give the solid dimeric compound PhaAKBH ).  

The synthesis and properties of tris(trimethylgermyl)aluminium have been described, whilst the compound ignited spontaneously in air it had astonishingly 

The new six-membered ring compound (8), has bwn prepared by the reaction of [MesP-BHa-PMcal+Br- with LiAlH.  

Schmidbaur, G. Muller, U. Schubert, and O. Orama, Angew. Chem., Internat. Edn., 1978,17,126. 

Isopropyliminoalane (HAINPr s reacts with -caprolactam in the same manner as does EtsAl, the ligands on the aluminium atom being successively replaced by caprolactam ligands, giving ultimately aluminium caprolactamate in quantitative yields.  

---

Preparations, Reactions, and Complexes.—The reactions of TICI3 with Grignard reagents prepared from acetylenic compounds have been reported. Thus reaction with BrMgC=CMgBr gave ClgTlCHgCHO after hydrolysis. The formation of the first tris(acetylenic)thallium was reported, from 1-ethynylcyclohexanol, (49). 

---