Preparation and molecular structure of a σ-bonded lanthanide phenyl

Advances in f element reductive reactivity as a paradigm for expanding lanthanide and actinide science and technology

“…Streitwieser's synthesis of uranocene, (C 8 H 8 ) 2 U, in 1968 [16] stimulated the field and cyclooctatetraenyl complexes of both trivalent [17][18][19] and divalent [20] lanthanides were subsequently reported. The only crystal structure of an organolanthanide with a Ln C single bond was that of the aryl "ate" salt, [Lu(2,6-Me 2 C 6 H 3 ) 4 ][Li(THF) 4 ], which was reported in 1972 [21].…”

“…(22) Since the reductions in Eqs. (16), (17), (21) and (22) were occurring without a change in the metal oxidation state, i.e. both …”

Homoallylic rearrangement of tertiary isotricyclenic alcohols as a route to 5-Substituted Unsaturated Bornane Derivatives

“…The alcohol 1 was synthesizrd by the modified method of Scott and Cotton [8]. The spectroscopic date (IH-n.m.r.…”

“…The structural elucidation of the obtained tertiary alcohols are based on spectral evidences, while their homogeneity on GC and microanalysis (see Experimental). The ex0 configuration of hydroxyl groups is assigned on the basis of the general rule of endo addition to norbornane compounds with 7-syn substituents [9 -111 and structural elucidations of alcohols 1 made by Scott and Cotton [8] with the use of lanthanide shift reagent.…”

“…and 13C-n.m.r as well as i.r.) and the melting point, which are absent in the Scott and Cotton's note [8], are given in Experimental. The other compounds 2 -4, not described in literature till now, were prepared by addition of the respective Grignard reagents to isotricyclenone.…”