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:
“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)
“It is not easy to construct by mere scientific synthesis a foolproof system which will lead our children in a desired direction and avoid an undesirable one. Obviously, good can come only from a continuing interplay between that which we, as students, are gradually learning and that which we believe in, as people.”
—Erik H. Erikson (20th century)
“If in the opinion of the Tsars authors were to be the servants of the state, in the opinion of the radical critics writers were to be the servants of the masses. The two lines of thought were bound to meet and join forces when at last, in our times, a new kind of regime the synthesis of a Hegelian triad, combined the idea of the masses with the idea of the state.”
—Vladimir Nabokov (1899–1977)