Process for preparing ethylenically unsaturated heterocyclic thi

Details Process for preparing ethylenically unsaturated heterocyclic thi Process for preparing ethylenically unsaturated heterocyclic thi

1985-04-01

1987-01-20

Hoke, Veronica P.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

548182, 549 10, 549 11, 549 14, 549 21, 549 28, 549 30, 549 36, C07D27904, C07D27704, C07D27706, C07D32702, C07D32704, C07D32706, C07D33322, C07D33324, C07D33502, C07D33316, C07D33704, C07D33902, C07D33908

Patent

active

046380647

ABSTRACT:
Unsaturated heterocyclic carbonyl-containing compounds, such as 2-oxathiolone, are prepared by the oxylation of saturated heterocyclic carbonyl-containing precursors of the above compounds in a C.sub.1-4 alcohol or carboxylic acid solvent in the presence of a supporting electrolyte followed by dehydroxylation of the oxylated intermediate.
The products formed may be polymerized or copolymerized with other ethylenically unsaturated monomers to prepared resins, films, etc. or they may be employed as reaction intermediates.

REFERENCES:
patent: 4301258 (1981-12-01), Lal et al.
patent: 4340690 (1982-07-01), Lal et al.
patent: 4459411 (1984-07-01), Wang
Justus Liebigs Am. Chem., 722, p. 132 at 137-138 (1969).
Nouveau Journal De Chimie, 7(5), pp. 269-270 (1983), "Thioglyoxal: Its Argon-Matrix Isolation in the Photolysis of Vinylene Thiocarbonates".
Tetrahedron Letters, No. 52, pp. 5007-5010 (1979).
Beilsteins Handbuch Der Organischen Chemie, p. 134 (1910), p. 658 (1910-1919).
Tetrahedron Letters, No. 21, pp. 2557-2558 (1980).
Z. Chem., vol. 4, No. 10, p. 386 (1964), "The Synthesis of Glucosides of 4-Hydroxycinnolines or Cinnolone-(4) and Their Thioanalogs".
Z. Chem., vol. 4, No. 10, p. 387 (1964), "Reaction of Zinc Diethyl with Alpha-Mono- and Alpha Alpha'-Dibrominated, Aliphatic Dicarboxylic Acid Esters".

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