Process for the production of alkyl cyanates and oligomers

Details Process for the production of alkyl cyanates and oligomers Process for the production of alkyl cyanates and oligomers

1979-02-08

1980-08-05

Torrence, Dolph H.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

260429R, 260453AL, 260453AR, 260453P, 544221, 544222, C07C11800, C07C12200, C07D25134

Patent

active

042163161

ABSTRACT:
A process is disclosed for the preparation of alkyl cyanates, alkyl isocyanurates, multifunctional alkyl cyanates, and oligomers of multifunctional alkyl isocyanates by reacting cyanogen halide with the corresponding thallium(I) salt of an alkanol at reduced temperatures, optionally in the presence of an inert solvent. Subsequently, warming the resulting product to ambient temperature causes isomerization to the corresponding aliphatic isocyanate and ultimately oligomerization to form trialkyl isocyanurate or oligomers of multifunctional alkyl isocyanates.

REFERENCES:
patent: 3553244 (1971-01-01), Grigat et al.
Kauer et al., J. Am. Chem. Soc., vol. 86, pp. 4732-4733 (1964).
Jensen, et al., Acta. Chem. Scand., vol. 20, 2091 at 2096 (1966).

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