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CAS No 67719-69-1 , tebbe

  • Name: tebbe
  • Synonyms: tebbe; mu-Chlorobis(((heta)^5)-cyclopentadienyl)(dimethylammonium)-mu-methylene-titanium; Bis(cyclopentadienyl-micron-chloro(dimethylaluminum-micron-methylenetitanium; MU-Chlorobis(Eta5-cyclopentadienyl)(dimethylaluminum)-MU-methylene-titanium (ca. 0.5mol/l Toluene Soln.);Chlorobishetacyclopentadienyldimethylammoniummumethyle;
  • CAS Registry Number:
  • Transport: UN 2924 3/PG 2
  • Density: 0.927
  • Safety Statements: R11:Highlyflammable.;R23/24/25:Toxicbyinhalation,incontactwithskinandifswallowed.;R34:Causesburns.;
  • Hazard Symbols: F:Highlyflammable;T:Toxic;
  • Molecular Weight: 284.60
  • InChI: InChI=1/2C5H5.2CH3.CH2.Al.ClH.Ti/c2*1-2-4-5-3-1;;;;;;/h2*1-5H;2*1H3;1H2;;1H;/rC13H19AlClTi/c1-14(2)11-16(15-14,12-7-3-4-8-12)13-9-5-6-10-13/h3-10,12-13,15H,11H2,1-2H3
  • Risk Statements: S16:Keepawayfromsourcesofignition-Nosmoking.;S25:Avoidcontactwitheyes.;S29:Donotemptyintodrains.;S33:Takeprecautionarymeasuresagainststaticdischarges.;S36/37/39:Wearsuitableprotectiveclothing,glovesandeye/faceprotection.;
  • Molecular Formula: C13H18AlClTi
  • Molecular Structure:CAS No:67719-69-1 tebbe

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References of tebbe
Title: Tebbe Reagent
CAS Registry Number: 67719-69-1
CAS Name: m-Methylene-m-chlorobis(h5-2,4-cyclopentadien-1-yl)(dimethylaluminum)titanium
Synonyms: (m-chloro)(m-methylene)bis(cyclopentadienyl)(dimethylaluminum)titanium
Molecular Formula: C13H18AlClTi
Molecular Weight: 284.58
Percent Composition: C 54.87%, H 6.38%, Al 9.48%, Cl 12.46%, Ti 16.82%
Literature References: Titanium-aluminum complex used in the Tebbe Olefination. Prepn: F. N. Tebbe et al., J. Am. Chem. Soc. 100, 3611 (1978). Improved prepn: L. F. Cannizzo, R. H. Grubbs, J. Org. Chem. 50, 2386 (1985). Ab initio structural model: M. M. Francl, W. J. Hehre, Organometallics 2, 457 (1983). Carbonyl methylenation applications compared with Wittig reactions: S. H. Pine et al., J. Org. Chem. 50, 1212 (1985); idem et al., Synthesis 1991, 165. Review of methylenation chemistry: Org. Synth. Highlights, J. Mulzer et al., Eds. (VCH, Weinheim, 1991) pp 192-196.
Properties: Reddish-orange crystals. Sol in toluene, benzene. Sensitive to air and water.
Use: Reagent for the methylenation of carbonyl groups.