Oxidation process using tellurium oxide catalysts

Details Oxidation process using tellurium oxide catalysts Oxidation process using tellurium oxide catalysts

1980-08-07

1983-01-25

Waltz, Thomas A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564215, 564217, 564218, 564224, 568305, 568306, 568307, 568308, 568309, 568383, 568386, 568408, 564 31, 564123, 564163, 564168, 564170, 564177, 564179, 564182, 564183, 564184, 564186, 564187, 564189, 564190, 564191, 564193, 564194, 564197, 564201, 564202, 564203, 564204, 564207, 564208, 564209, 564210, 564211, 564214, 260455R, 260455B, 260455A, 260463, 560 1, 560 24, 560 29, 560 30, 560 31, 560 32, 560 33, 560 43, 560 55, 560 58, 560 61, 560115, 560125, 560126, 560121, 560123, 560124, 560131, 560132, 56013

Patent

active

043704972

ABSTRACT:
The present invention relates to the use of telluroxides as mild and selective oxidizing agents serving to oxidize certain functions, notably >C.dbd.S groups, in the presence of other relatively easily oxidized functions which remain unaffected; telluroxides of interest as oxidizing agents include, for example, compounds of the formula: ##STR1## wherein R and R.sup.1, which may be the same or different, each represent an optionally substituted aryl or heterocyclic group; or R and R.sup.1 together with the tellurium atom therebetween represent a heterocyclic ring, which may contain one or more further heteroatoms, and which may carry substituents and/or fused aromatic rings.

REFERENCES:
patent: 4162234 (1979-07-01), Grasselli et al.
patent: 4238624 (1980-12-01), Morris et al.
Richter, CA 47:10771ad (1954).
Suresh, CA 53:14030a (1959).
Lacey, CA 49:8944h (1955).

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