65123-79-7Relevant academic research and scientific papers
Nature of alkyl-hydrogen exchange reactions involving aluminum and zinc. 5. Reactions of diphenylzinc with lithium aluminum hydride in diethyl ether and tetrahydrofuran. Preparation of PhZn2H3
Ashby,Goel
, p. 1096 - 1101 (2008/10/08)
The reactions of diphenylzinc with lithium aluminum hydride in diethyl ether and THF have been studied in detail. Although ZnH2 as an insoluble solid and LiAlPhnH4-n in solution are formed when the Ph2Zn:LiAlH4 ratio is 2:1, 3:2, 1:1, and 1:2 in ether, no ZnH2 is formed when Ph2Zn is allowed to react with LiAlH4 in THF in ratios varying from 4:1 to 1:2. Instead, PhZn2H3 is formed which is insoluble in THF. This compound is reported for the first time, and its existence is supported by IR, X-ray powder diffraction, and DTA-TGA studies. When ZnH2, prepared by the reaction of Ph2Zn with LiAlH4 in ether, was allowed to react with Ph2Zn and cyclopentadiene independently in THF, the insoluble products PhZn2H3 and CpZn2H3 formed. Reaction of cyclohexanol with ZnH2 is also discussed.
