Aromatic cyanic acid esters

Details Aromatic cyanic acid esters Aromatic cyanic acid esters

1976-02-05

1977-11-29

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260453AM, 260453P, 260463, 260939, C07C12200

Patent

active

040605418

ABSTRACT:
Aromatic cyanic acid esters having a free hydroxyl group which is not sterically hindered are prepared by reacting aromatic dihydroxy and polyhydroxy compounds with cyanogen halide in aqueous solution in the presence of a water-immiscible organic solvent and an inorganic base. Aromatic cyanic acid esters prepared by the process have the formula ##STR1## wherein Ar is optionally substituted aromatic and n and m are the same or different and are one of the numbers from 1 to 5, with the sum m and n being not greater than the number of replaceable hydrogen atoms in the radical Ar.

REFERENCES:
patent: 3553244 (1971-01-01), Grigat et al.
patent: 3595900 (1971-07-01), Loudas et al.
patent: 3763206 (1973-10-01), Brunetti

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