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Synthesis, properties, and multinuclear NMR (/sup 125/Te//sup 1/H/, /sup 13/C//sup 1/H/, /sup 1/H Studies of Di- and polytelluroether ligands

Journal Article · · Organometallics; (United States)
DOI:https://doi.org/10.1021/om00091a015· OSTI ID:7004857
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Convenient syntheses for RTeLi (R = Me or Ph) from RLi and tellurium in tetrahydrofuran at low temperatures are described. The RTeLi react readily with organic dihalides X(CH/sub 2/)/sub n/X (X = Cl or Br), the products depending upon the temperature and the carbon chain length (n). Thus at low temperatures CH/sub 2/Cl/sub 2/ and Cl(CH/sub 2/) produce high yields of RTe(CH/sub 2/)/sub n/TeR (n = 1 or 3), but at room temperature Cl(CH/sub 2/)/sub n/ Cl (n = 2 or 3) affords R/sub 2/Te/sub 2/ olefin. 1,4-Dihalobutanes give R/sub 2/Te and Te(CH/sub 2/)/sub 3/Ch/sub 2/, while Cl(CH/sub 2/)/sub 5/Cl produced mixtures of R/sub 2/Te,RTe(CH/sub 2/)/sub 5/TeR, and Te(CH/sub 2/)/sub 4/CH/sub 2/. Preparations for RTe(CH/sub 2/)/sub 6/TeR, MeTe(CH/sub 2/)/sub 10/TeMe, and MeC(CH/sub 2/TeMe)/sub 3/ are described. PHTeLi and C(CH/sub 2/Br)/sub 4/ gave C(CH/sub 2/TePh)/sub 4/, but MeTeLi unexpectedly gave CH/sub 2/CH/sub 2/C(CH/sub 2/Te

Research Organization:
The University, Southampton (England)
OSTI ID:
7004857
Journal Information:
Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 7:1; ISSN ORGND
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON 13
CARBON ISOTOPES
CHEMICAL PREPARATION
CHEMICAL SHIFT
COUPLING CONSTANTS
DATA
ETHERS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HYDROGEN 1
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGANDS
LIGHT NUCLEI
LOW TEMPERATURE
MAGNETIC RESONANCE
MASS SPECTROSCOPY
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANOMETALLIC COMPOUNDS
RESONANCE
SPECTROSCOPY
STABLE ISOTOPES
SYNTHESIS
TELLURIUM COMPOUNDS