Detail of "1273-98-9"

Reference

Cyclopentadienyl ring metathesis with organocalcium and organopotassium compounds

Cyclopentadienyl ring metathesis with organocalcium and organopotassium compounds. Tanner, Pamela S.; Overby, Jason S.; Henein, Maurice M.Chemicals with cas numbers 1273-98-9 and 166907-34-2 also play role.; Hanusa, Timothy P. (Department Chemistry, Vanderbilt University, Nashville, TN 37235, USA). Chemische Berichte/Recueil, 130(2), 155-159 (English) 1997 VCH. CODEN: CHBRFW. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 75 Cyclopentadienyl ring metathesis occurs between [Ca(C5Me5)2] and [Ln(C5H5)3] complexes in toluene to generate the mixed ring compds. [Ln(C5Me5)2(C2H5)] (Ln = La, Nd). [Nd(C5Me5)2(C2H5)] was characterized with x-ray diffraction as a sterically crowded monomer. Only one ring is exchanged between [Ca(C5Me5)2(thf)x] and [La(C5H5)3(thf)x] in toluene to yield [La(C5Me5)(C5H5)2(thf)]. In reaction with [M(C5H5)2] (M = Sn, Pb, Mn), [Ca(C5M5)2(thf)x] yields the corresponding [M(C5Me5)2] complexes. K[C5Me5] reacts with [La(C5H5)3(thf)], [Sn(C5H5)2] and [Pb(C5H5)2] in toluene to yield the ring-exchanged products [La(C5Me5)(C5H5)2(thf)], [Sn(C5Me5)2], and [Pb(C5Me5)2], resp. .

Synthesis, structure, and lanthanide derivatives of an unusual hexameric alcohol: [2,4,6-(CF3)3C6H2CH2OH]6

Synthesis, structure, and lanthanide derivatives of an unusual hexameric alcohol: [2,4,6-(CF3)3C6H2CH2OH]6. Edelmann, Frank T.; Poremba, Peter; Bohnen, Frank Michael; Herbst-Irmer, Regine (Chemisches Institut, Otto-von-Guericke-Universitaet, Magdeburg, Germany). Zeitschrift fuer Anorganische und Allgemeine Chemie, 630(11), 1671-1676 (English) 2004 Wiley-VCH Verlag GmbH & Co.Chemicals with cas numbers 833447-98-6 and 1273-98-9 also play role. KGaA. CODEN: ZAACAB. ISSN: 0044-2313. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 25, 75 Hitherto unknown 2,4,6-tris(trifluoromethyl)benzyl alc. (3) was synthesized in 41% yield by treatment of freshly prepd. RFLi (2) with paraformaldehyde (RF = 2,4,6-tris(trifluoromethyl)phenyl). According to an x-ray diffraction study the crystal structure of 3 consists of S6 sym. cyclic hexamers, [2,4,6-(CF3)3C6H2CH2OH]6. Deprotonation of 3 with NaN(SiMe3)2 in toluene afforded the unsolvated Na alkoxide deriv. RFCH2ONa (4). Homoleptic lanthanide alkoxides Ln(OCH2RF)3 (Ln = Nd (5), Sm (6), Yb (7)) were made by treatment of Ln(C5H5)3 with three equiv of 3. Similar reactions in a 1:1 molar ratio afforded the bis(cyclopentadienyl)lanthanide alkoxide derivs. (C5H5)2Ln(OCH2RF) (Ln = Nd (8), Sm (9), Yb (10)). .