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57857-70-2

Oxobis(4-methoxyphenyl) tellurium(IV) synthesis

7synthesis methods
-

Yield:57857-70-2 89%

Reaction Conditions:

with sodium bromate in water at 80; for 0.583333 h;Ionic liquid;

Steps:

Oxidation of sulfides, tellurides and phosphines; general procedure

General procedure: A mixture of sodium bromate (3.12 mmol), and substrate 1 or 3 or 5(1.04 mmol) in 4 mL of [bmim]HSO4:H2O (3:1, v/v) was placed in a 50 mL round-bottomed flask mounted over a magnetic stirrerand fitted with an air condenser. The contents were heated in an oil-bath maintained at 80 °C for the time specified in Table 2 and 3.The progress of the reaction was monitored by TLC using ethylacetate:petroleum ether (50:50, v/v) as eluent. After completion ofthe reaction, the contents were allowed to cool to room temperature.A saturated solution of sodium thiosulfate (~5 mL) was added into thereaction mixture in order to remove excess unreacted bromine. Themixture was poured into a beaker containing ice cold water (~30 mL)and stirred well. The solid product was filtered under suction pumpand recrystallised. The products were characterised by its m.p., IR andNMR spectra.

References:

Rajeswari;Lumb, Anshika;Khurana, Jitender M. [Journal of Chemical Research,2016,vol. 40,# 7,p. 442 - 444]