Synthesis
Commonly used tellurium based reagents are hydrogen telluride, NaHTe, sodium telluride, and PhTeLi. Because Te is insoluble and polymeric, it is often not a useful precursor to organotellurium compounds, but it is attacked by hydride reducing agents:
- Te + 2LiBHEt3 → Li2Te + H2S + 2 BEt
and organolithium compounds:
- Te + RLi → RTeLi
One departure from S and Se chemistry, is the availability of the tetrachloride TeCl4. Tellurium tetrachloride reacts with alkenes and alkynes to the chloro tellurium trichloride addition product:
- RCH=CH2 + TeCl4 → RCH(Cl)-CH2TeCl3
These organotellurium derivatives are susceptible to further reactions.
Read more about this topic: Organotellurium Chemistry
Famous quotes containing the word synthesis:
“In order to begin an analysis, there must already be a synthesis present in the mind.”
—Johan Huizinga (1872–1945)
“The invention of photography provided a radically new picture-making process—a process based not on synthesis but on selection. The difference was a basic one. Paintings were made—constructed from a storehouse of traditional schemes and skills and attitudes—but photographs, as the man on the street put, were taken.”
—Jean Szarkowski (b. 1925)
“The spider-mind acquires a faculty of memory, and, with it, a singular skill of analysis and synthesis, taking apart and putting together in different relations the meshes of its trap. Man had in the beginning no power of analysis or synthesis approaching that of the spider, or even of the honey-bee; but he had acute sensibility to the higher forces.”
—Henry Brooks Adams (1838–1918)