Reuben D. Rieke

Activated Metals : VI*. Preparation and Reactions of Higly Reactive Indium Metal☆

Abstract Highly reactive indium powder, prepared by alkali metal reduction of indium salts in hydrocarbon solvents, reacts at moderate temperatures in hydrocarbon solvents with alkyl iodides to give dialkylindium iodides, and with iodine to give indium monoiodide.

Activated Metals IV. The Preparation of Highly Reactive Aluminum Metal and the Direct Synthesis of Phenyl-aluminum Halides

Abstract Highly activated aluminum powder has been prepared. Phenylaluminum halides were synthesized directly from aryl halides (X [dbnd] Cl, Br, I) and the activated aluminum metal in high yields in organic solvents at moderate temperatures.

Activated Metals VII. An Improved Method for the Synthesis of Trialkyl and Triaryl Indium Compounds

Abstract An improved method has been developed for the synthesis of triaryl and trialkyl indium compounds by the reaction of diorganomercury compounds with activated indium metal which was prepared by reducing an indium salt with alkali metals in hydrocarbon solvents. Trimethylindium, triphenyl-indium and tritolylindium have been prepared in hydrocarbon solvents using this activated indium metal.

Activated Metals. X. Direct Synthesis of Diphenylindium Iodide and Ditolylindium Iodide from Activated Indium Metal

Abstract An improved method has been developed for the synthesis of diphenylindium iodide and ditolylindium iodide. The method involves the direct reaction of activated indium metal with the corresponding aryl iodide.

The electrochemical and chemical reduction of some phenyl substituted cyclooctatetraenes

Summary The reduction of phenylcyclooctatetraene, 1,3,5,7-tetraphenylcyclooctatetraene and 1,2,4,7-tetraphenylcyclooctatetraene has been studied in several nonaqueous solvents using d.c. polarography and cyclic voltammetry. E.p.r. data are also presented for the first two compounds. All the data suggest the flattening of the eight-membered ring upon reduction. In the case of 1,2,5,7-tetraphenylcyclo-octatetraene an electrochemically and chemically reversible two electron reduction was observed at slow scan rates.

A new class of radical cations: the radical cations of 1,4-diphosphoniacyclohexa-2,5-diene salts

Electrochemical reduction of a series of 1,4-diphosphoniacyclohexadiene salts has produced a new class of radical cations for which e.s.r. data are presented.